Lawsonline™  Directory  Expert Witness  Forensic Engineering

PEG, Inc. Experts Professional Engineering Group
Birmingham, Alabama
950 22nd Street North, Suite 632, 35203


Contact:  Lamar T. Hawkins, J.D., P.E.
peginc.biz
205-458-8516 Or Toll Free
lthpc@aol.com
Experts Professional Engineering Group
950 22nd Street North, Suite 632
Birmingham, Alabama 35203

Contact:  Lamar T. Hawkins, J.D., P.E.
peginc.biz
205-458-8516
lthpc@aol.com
"Free telephone conference call about your case." ---------- Serving the Southeast Region.
Information:  
Accident Reconstruction,  Building Code Compliance,  Building Vibration Analysis,  Civil Construction and Engineering,  Civil Engineering,  Code Compliance,  Concrete and Masonry,  Construction Accidents,  Construction Defects,  Construction Safety,  Cooling Towers,  Electrical Engineering,  Engineering,  Fall Protection,  Forensic Engineering,  Manufacturing Accidents,  Mechanical Engineering,  Metallurgy,  Motor Vehicles,  OSHA,  Paint and Coatings,  Premises Liability,  Safety,  Safety Engineering,  Slip, Trip, and Fall,  Structural Engineering,  Trucking, 


"Free telephone conference call about your case." ---------- Serving the Southeast Region.

Engel Metallurgical, LTD
Saint Cloud, Minnesota
P.O. Box 6100, 56302


Contact:  Lester Engel
www.engelmet.com
320-253-7968 Or Toll Free 800-258-7968
les@engelmet.com
P.O. Box 6100
Saint Cloud, Minnesota 56302

Contact:  Lester Engel
www.engelmet.com
320-253-7968 Or Toll Free 800-258-7968
les@engelmet.com
Engel Metallurgical clients include attorneys, insurance company representatives and members of a broad range of industries, including chemical, agricultural, aviation, power generation, construction, transportation and manufacturing.

Our services are provided by engineers and technicians with specialized expertise, using updated laboratory equipment to analyze and test materials of all sizes, purposes and conditions - from tiny, nearly unrecognizable bolts involved in accidents to aviation components under consideration for use.

We analyze a wide variety of materials, from steel alloys to iron, aluminum and copper-based castings and super alloys, plus plastics, cermet's and others.
Information:  
Energy,  Failure Analysis,  Forensic Engineering,  Metallurgy,  Power Generation,  Product Failure,  Product Failure Determination, 


Engel Metallurgical clients include attorneys, insurance company representatives and members of a broad range of industries, including chemical, agricultural, aviation, power generation, construction, transportation and manufacturing.

Our services are provided by engineers and technicians with specialized expertise, using updated laboratory equipment to analyze and test materials of all sizes, purposes and conditions - from tiny, nearly unrecognizable bolts involved in accidents to aviation components under consideration for use.

We analyze a wide variety of materials, from steel alloys to iron, aluminum and copper-based castings and super alloys, plus plastics, cermet's and others.

Forensic Analysis & Engineering Corporation
Hampton, Virginia
2503 58th Street Suite A, 23661


Contact:  Meagan McBride
www.forensic-analysis.com
757-265-9333 Or Toll Free 800-224-3595
corporate@4n6engr.com
2503 58th Street Suite A
Hampton, Virginia 23661

Contact:  Meagan McBride
www.forensic-analysis.com
757-265-9333 Or Toll Free 800-224-3595
corporate@4n6engr.com
Forensic Analysis & Engineering Corporation (FAEC) is more than an engineering firm. Our team of professional engineers, qualified scientists and specialized experts will work with you to resolve your case quickly, accurately and objectively. We have been providing a broad range of forensic investigations for a diverse worldwide client base for more than 50 years, by solving thousands of puzzling questions and helping settle billions of dollars in claims and personal losses spanning the gamut from fire & explosions, accident reconstructions, storm & catastrophic events, product defects to a wide array of marine losses. FAEC has a well-founded reputation for providing defendable, court-approved analyses which convincingly define why an event occurred. Our rapid response team is ready 24/7 to support your file effort by getting the answers you need, when you need them!
Information:  
Accident Injury,  Accident Reconstruction,  Admiralty,  Amusement Parks,  Automobile Accidents,  Aviation,  Biomechanics,  Biomedical and Biomechanical Injury Analysis,  Biomedical Engineering,  Boating,  Building Code Compliance,  Carbon Monoxide,  Civil Construction and Engineering,  Code Compliance,  Commercial Vehicle Accident Reconstruction,  Computer Data Recovery,  Computer Forensics,  Construction Claims,  Construction Defects,  Construction Safety,  Consumer Products,  Document Alterations,  Document Analysis,  Document Examiner,  Document Management,  Earthquake Damage,  Electrical Engineering,  Elevators and Escalators,  Equipment and Machinery,  Failure Analysis,  Farms and Farm Safety,  Fire and Explosions,  Fire Forensics,  Fire Origin and Cause,  Fire Protection Investigations,  Food Safety,  Forensic Engineering,  Forklifts,  Geotechnical Engineering,  Groundwater Resources and Contamination,  Hail Damages,  Handwriting Experts,  Human Factors,  Hurricane Damage,  HVAC Investigations,  Indoor Air Quality,  Industrial Accidents,  Job Safety Analysis,  Lab Testing and Analysis,  Ladders and Manlifts,  Litigation Support,  Machine Safety,  Manufacturing Accidents,  Maritime,  Materials Science,  Mechanical Engineering,  Metallurgy,  Mold and Moisture,  Motor Vehicles,  Motorcycle Accident Reconstruction,  Noise Measurement and Control,  Occupational Injury,  Office Buildings,  Oil and Gas,  OSHA,  Paint and Coatings,  Park and Playground Accidents,  Patents,  Personal Injury,  Pipeline Pressure Vessels Failure,  Plumbing,  Process Safety Chemicals and Oil Refining,  Product Failure,  Product Failure Determination,  Product Liability,  Reconstruction,  Reinforced Concrete and Masonry,  Roofing and Waterproofing,  Safety Engineering,  Shooting Incident Reconstruction,  Slip, Trip, and Fall,  Solar Energy,  Structural Engineering,  Structural Failure,  Toxic Exposures,  Trial Consultants,  Water and Flood Damage, 


Forensic Analysis & Engineering Corporation (FAEC) is more than an engineering firm. Our team of professional engineers, qualified scientists and specialized experts will work with you to resolve your case quickly, accurately and objectively. We have been providing a broad range of forensic investigations for a diverse worldwide client base for more than 50 years, by solving thousands of puzzling questions and helping settle billions of dollars in claims and personal losses spanning the gamut from fire & explosions, accident reconstructions, storm & catastrophic events, product defects to a wide array of marine losses. FAEC has a well-founded reputation for providing defendable, court-approved analyses which convincingly define why an event occurred. Our rapid response team is ready 24/7 to support your file effort by getting the answers you need, when you need them!

Peterson Engineering, Inc.
Merrifield, Minnesota
27488 Ridgewood Drive, 56465


Contact:  Donn N. Peterson, PE, D-IBFES, President
www.donnnpeterson.com
218-765-3556 Or Toll Free
DonnNPeterson@aol.com
27488 Ridgewood Drive
Merrifield, Minnesota 56465

Contact:  Donn N. Peterson, PE, D-IBFES, President
www.donnnpeterson.com
218-765-3556
DonnNPeterson@aol.com
Donn N. Peterson, PE, D-IBFES, President
Peterson Engineering, Inc.
evaluates the engineering sciences aspects of incidents and artifacts that may become subjects of litigation. We help clients evaluate the merits of their case. We also help identify and develop relevant issues. Much of our work relates to civil litigation cases. We have also given expert witness testimonies in several criminal cases.
Eyewitness testimonies are often incomplete, inaccurate in certain details, and sometimes contradictory. We can help fill missing gaps and resolve conflicts in eyewitness accounts.
Information:  
Accident Reconstruction,  Forensic Engineering,  Mechanical Engineering,  Product Liability,  Slip, Trip, and Fall, 


Donn N. Peterson, PE, D-IBFES, President
Peterson Engineering, Inc.
evaluates the engineering sciences aspects of incidents and artifacts that may become subjects of litigation. We help clients evaluate the merits of their case. We also help identify and develop relevant issues. Much of our work relates to civil litigation cases. We have also given expert witness testimonies in several criminal cases.
Eyewitness testimonies are often incomplete, inaccurate in certain details, and sometimes contradictory. We can help fill missing gaps and resolve conflicts in eyewitness accounts.

QC Metallurgical, Inc.
Hollywood, Florida
2870 Stirling Road, 33020


Contact:  Frank Grate
www.qcmetallurgical.com
954-889-0089 Or Toll Free
fgrate@qcmet.com
2870 Stirling Road
Hollywood, Florida 33020

Contact:  Frank Grate
www.qcmetallurgical.com
954-889-0089
fgrate@qcmet.com
Additional Email: QCMET2870@gmail.com

Incorporated in 1967, Q.C. Metallurgical Inc is a small, family owned material engineering and testing laboratory serving the marine, aerospace, manufacturing and construction industries. Owned and operated by Frank Grate – a highly respected professional engineer who is registered in the states of Florida and Ohio, we provide service for our local customers in Florida as well as throughout the US and even overseas.

Q.C. Metallurgical Inc is an approved testing laboratory accredited by Lloyds of London, Pratt & Whitney, U.S. Coast Guard, Lockheed Martin, Miami-Dade County, Bombardier, Aero Thrust Holdings and more. We are approved by Miami-Dade County Building code 7AS301-94 and are certified to perform a variety of tests.
Information:  
Corrosion Engineering,  Failure Analysis,  Forensic Chemistry,  Forensic Engineering,  Lab Testing and Analysis,  Materials Science,  Metallurgy, 


Additional Email: QCMET2870@gmail.com

Incorporated in 1967, Q.C. Metallurgical Inc is a small, family owned material engineering and testing laboratory serving the marine, aerospace, manufacturing and construction industries. Owned and operated by Frank Grate – a highly respected professional engineer who is registered in the states of Florida and Ohio, we provide service for our local customers in Florida as well as throughout the US and even overseas.

Q.C. Metallurgical Inc is an approved testing laboratory accredited by Lloyds of London, Pratt & Whitney, U.S. Coast Guard, Lockheed Martin, Miami-Dade County, Bombardier, Aero Thrust Holdings and more. We are approved by Miami-Dade County Building code 7AS301-94 and are certified to perform a variety of tests.

Automotive Design Analysis
South Lyon, Michigan
10945 Stoney Point, 48178


Contact:  Michael Nranian
www.trialexpertwitness.com
248-376-0338 Or Toll Free
mnranian@charter.net
10945 Stoney Point
South Lyon, Michigan 48178

Contact:  Michael Nranian
www.trialexpertwitness.com
248-376-0338
mnranian@charter.net

Michael Nranian's CV

 

Michael Nranian has over 30 years of experience focusing in Product Development, Intellectual Property, Patent Litigation, Legal and Technical Compliance, & Product Liability Litigation. He is a Six Sigma Black Belt, Professional Engineer, & Certified Project Management Professional. He has an in-depth background and education in Law, Intellectual Property, Electrical, Chemical, & Computer Engineering, Product Liability, & Business. He has testified extensively as an expert witness in depositions, hearings, and trials in state & federal courts. He is also a licensed attorney in Michigan, Texas, & the United States Patent and Trademark Office.

He provides and conducts Technical Product and Engineering Analysis, Patentability & Prior Art Research, and provides the Technical, Scientific, & Litigation Support for Intellectual Property. His litigation experience includes patent infringement / non-infringement under literal infringement and the doctrine of equivalents, patent validity / invalidity, prior art, & file-wrapper estoppel, for ITC & Federal cases, including Inter Partes reviews. He conducts analysis of all aspects of intellectual property, including patents and products, prepares claim charts, & expert witness reports. This includes testimony and document preparation for cases before state, and federal court jurisdictions, and the International Trade Commission, and the Patent Trial and Appeal Board.

He performs analysis under the America Invents Act, and all 101, 102, 103, 112, and other arguments. His experience includes Technology Standards Boards and Licensing Authorities, Antitrust / DOJ, Technology Development and Transfer, Patents, Trademarks, Trade Secrets, Copyrights, Licensing, Unfair Competition/Trade, False/Deceptive Advertising, & Lanham Act Actions, and Class Actions. His Product Liability Expert Witness litigation background includes all types of Safety Systems, Electrical Systems, Fires, Accident Reconstruction (certified through Northwestern University), and Evaluation of Alternative Designs for Automotive, Medical, Manufacturing, and other industries. He has extensive Testifying Experience.

He has over 30 years of experience in Automotive and Safety Systems, Sensors, Seatbelts, Airbags / Curtains, Seats, Electrical/Electronic/Electromechanical Systems and Architecture, Warning & Diagnostic Systems, Sensors and Sensor Fusion, Vision and Camera Optical/Image, Forward Collision/Lane Departure Warning, GPS, Navigation, Telematics, Powertrain, Engine, Cellular/Radio/Wireless/Satellite Communication, Information and Data Transmission, Data & Parameter storage & retrieval, Human Machine Interface, Controls, Crash Recorders, Crash Pulse Analysis, System Diagnostic, Fault Codes, Structure (including roof-crush and door) and Front, Side & Roll-over systems (including sensing and algorithm development), Occupant sensing, computer/microprocessor, software/source code analyses, Monitoring & Surveillance, Automotive & Recreational Vehicles, Trucks/Commercial Vehicles, Fleet Management Systems, Construction & Excavation Vehicles/Equipment, Manufacturing and Product Development for domestic and international corporations. He is thoroughly familiar with all regulatory (including ECE & FMVSS), and corporate due-care & SAE requirements, and preemption arguments, safety standards, occupant kinematics, biomechanics & injury causation as well as OSHA, ANSI, Fall Protection. Complete Forensic Investigations and Analyses.
Information:  
Accident Investigations,  Accident Photo Analysis,  Automotive,  Chemicals,  Chemistry,  Copyright Infringement,  Electrical,  Electrical Engineering,  Electronics,  Engineering,  Failure Analysis,  Forensic Engineering,  Intellectual Properties,  Licensing,  Litigation Support,  Materials Science,  Mechanical Engineering,  Motor Vehicles,  Patents,  Product Liability,  Safety,  Scientific and Engineering,  Telecommunications,  Trademark,  Transportation,  Trucking, 


Michael Nranian's CV

 

Michael Nranian has over 30 years of experience focusing in Product Development, Intellectual Property, Patent Litigation, Legal and Technical Compliance, & Product Liability Litigation. He is a Six Sigma Black Belt, Professional Engineer, & Certified Project Management Professional. He has an in-depth background and education in Law, Intellectual Property, Electrical, Chemical, & Computer Engineering, Product Liability, & Business. He has testified extensively as an expert witness in depositions, hearings, and trials in state & federal courts. He is also a licensed attorney in Michigan, Texas, & the United States Patent and Trademark Office.

He provides and conducts Technical Product and Engineering Analysis, Patentability & Prior Art Research, and provides the Technical, Scientific, & Litigation Support for Intellectual Property. His litigation experience includes patent infringement / non-infringement under literal infringement and the doctrine of equivalents, patent validity / invalidity, prior art, & file-wrapper estoppel, for ITC & Federal cases, including Inter Partes reviews. He conducts analysis of all aspects of intellectual property, including patents and products, prepares claim charts, & expert witness reports. This includes testimony and document preparation for cases before state, and federal court jurisdictions, and the International Trade Commission, and the Patent Trial and Appeal Board.

He performs analysis under the America Invents Act, and all 101, 102, 103, 112, and other arguments. His experience includes Technology Standards Boards and Licensing Authorities, Antitrust / DOJ, Technology Development and Transfer, Patents, Trademarks, Trade Secrets, Copyrights, Licensing, Unfair Competition/Trade, False/Deceptive Advertising, & Lanham Act Actions, and Class Actions. His Product Liability Expert Witness litigation background includes all types of Safety Systems, Electrical Systems, Fires, Accident Reconstruction (certified through Northwestern University), and Evaluation of Alternative Designs for Automotive, Medical, Manufacturing, and other industries. He has extensive Testifying Experience.

He has over 30 years of experience in Automotive and Safety Systems, Sensors, Seatbelts, Airbags / Curtains, Seats, Electrical/Electronic/Electromechanical Systems and Architecture, Warning & Diagnostic Systems, Sensors and Sensor Fusion, Vision and Camera Optical/Image, Forward Collision/Lane Departure Warning, GPS, Navigation, Telematics, Powertrain, Engine, Cellular/Radio/Wireless/Satellite Communication, Information and Data Transmission, Data & Parameter storage & retrieval, Human Machine Interface, Controls, Crash Recorders, Crash Pulse Analysis, System Diagnostic, Fault Codes, Structure (including roof-crush and door) and Front, Side & Roll-over systems (including sensing and algorithm development), Occupant sensing, computer/microprocessor, software/source code analyses, Monitoring & Surveillance, Automotive & Recreational Vehicles, Trucks/Commercial Vehicles, Fleet Management Systems, Construction & Excavation Vehicles/Equipment, Manufacturing and Product Development for domestic and international corporations. He is thoroughly familiar with all regulatory (including ECE & FMVSS), and corporate due-care & SAE requirements, and preemption arguments, safety standards, occupant kinematics, biomechanics & injury causation as well as OSHA, ANSI, Fall Protection. Complete Forensic Investigations and Analyses.

Canney Brook Forensic Engineers
Boston, Massachusetts
, 02110


Contact:  R. Craig Williams P.E., CFEI, CFII
www.canneybrook.com
603-742-7200 Or Toll Free
solutions@canneybrook.com

Boston, Massachusetts 02110

Contact:  R. Craig Williams P.E., CFEI, CFII
www.canneybrook.com
603-742-7200
solutions@canneybrook.com

R. Craig Williams CV


Canney Brook Engineering and Consulting, LLC provides forensic engineering investigative solutions to insurance professionals and the legal profession. Accurate and efficient investigations allow for proper evaluation of losses, allow recovery, or protect from non-evidenced claims. Canney Brook provides services primary in New England and New York. Canney Brook accepts assignments throughout the US when Canney Brook's experts are able to provide unique and exceptional value to clients.

Our forensic engineering and fire and explosion analyses include investigation of reasonable alternative origin and cause hypotheses. Scene evidence is documented and hypotheses are tested to substantiate or disprove different hypotheses as a cause or contributory effect. This inductive-deductive procedure insures our reporting to is accurate, reasonable, scientifically based and defensible against challenges. Disproved hypotheses are explained and hypotheses supported by evidence are accepted, prepared, and advanced.

OUR COMMITMENT
Canney Brook provides clients a high level of measurable value. We at Canney Brook are committed to providing independent accurate information by which clients can make informed decisions. During investigations we may evaluate and suggest alternative solutions which mitigate damages suffered and provide enhanced outcomes. Our proactive approach and years of experience ensure that assignments will be completed on schedule and on-budget.

  OUR RECORD
Our consistent record of uncompromising ethics instills confidence and trust. Our staff responds quickly when retained, acts on behalf of the client, and remains available throughout the investigation and litigation.

Mr. Williams is a mechanical engineer with more than 27 years’ of practice in consulting, research, manufacturing, operations, product design, business development, and failure analysis prior to becoming a forensic engineer. Over his many years of licensed experience, he designed, specified, maintained, operated, and evaluated the equipment to which he now investigates for failure, incident, fire, and explosion analysis. His background as a professional consulting engineer, as a research engineer, as a construction manager, as a manufacturing, operations, and process manager, as a corporate officer, and as a director of an electric utility provided specialized training, experience, education and knowledge for his forensic engineering practice.

Mr. Williams conducts mechanical, electrical, and materials engineering failure analysis, product defect analysis, fire origin and cause investigations, environmental investigations, and workplace injury investigations. These services are provided to the insurance, industrial, institutional, corporate, and legal communities.

Mr. Williams holds a Bachelor’s of Science degree in Mechanical Engineering from the University of New Hampshire, a Master’s of Science degree in Architectural Engineering from The Pennsylvania State University, and has completed Doctoral Studies in International Business from Southern New Hampshire University. Principal Professional Engineer.
Information:  
Accident Investigations,  Fire and Explosions,  Fire Forensics,  Fire Origin and Cause,  Forensic Engineering,  HVAC Investigations,  Materials Science,  Mechanical Engineering,  OSHA,  Plumbing,  Product Failure,  Slip, Trip, and Fall, 


R. Craig Williams CV


Canney Brook Engineering and Consulting, LLC provides forensic engineering investigative solutions to insurance professionals and the legal profession. Accurate and efficient investigations allow for proper evaluation of losses, allow recovery, or protect from non-evidenced claims. Canney Brook provides services primary in New England and New York. Canney Brook accepts assignments throughout the US when Canney Brook's experts are able to provide unique and exceptional value to clients.

Our forensic engineering and fire and explosion analyses include investigation of reasonable alternative origin and cause hypotheses. Scene evidence is documented and hypotheses are tested to substantiate or disprove different hypotheses as a cause or contributory effect. This inductive-deductive procedure insures our reporting to is accurate, reasonable, scientifically based and defensible against challenges. Disproved hypotheses are explained and hypotheses supported by evidence are accepted, prepared, and advanced.

OUR COMMITMENT
Canney Brook provides clients a high level of measurable value. We at Canney Brook are committed to providing independent accurate information by which clients can make informed decisions. During investigations we may evaluate and suggest alternative solutions which mitigate damages suffered and provide enhanced outcomes. Our proactive approach and years of experience ensure that assignments will be completed on schedule and on-budget.

  OUR RECORD
Our consistent record of uncompromising ethics instills confidence and trust. Our staff responds quickly when retained, acts on behalf of the client, and remains available throughout the investigation and litigation.

Mr. Williams is a mechanical engineer with more than 27 years’ of practice in consulting, research, manufacturing, operations, product design, business development, and failure analysis prior to becoming a forensic engineer. Over his many years of licensed experience, he designed, specified, maintained, operated, and evaluated the equipment to which he now investigates for failure, incident, fire, and explosion analysis. His background as a professional consulting engineer, as a research engineer, as a construction manager, as a manufacturing, operations, and process manager, as a corporate officer, and as a director of an electric utility provided specialized training, experience, education and knowledge for his forensic engineering practice.

Mr. Williams conducts mechanical, electrical, and materials engineering failure analysis, product defect analysis, fire origin and cause investigations, environmental investigations, and workplace injury investigations. These services are provided to the insurance, industrial, institutional, corporate, and legal communities.

Mr. Williams holds a Bachelor’s of Science degree in Mechanical Engineering from the University of New Hampshire, a Master’s of Science degree in Architectural Engineering from The Pennsylvania State University, and has completed Doctoral Studies in International Business from Southern New Hampshire University. Principal Professional Engineer.

Complete General Contractors, Inc.
Pensacola, Florida
511 E Government Street, 32502


Contact:  John G. Minor CGC, CFM
www.teamcomplete.com/
850-932-8720 Or Toll Free
john@teamcomplete.com
511 E Government Street
Pensacola, Florida 32502

Contact:  John G. Minor CGC, CFM
www.teamcomplete.com/
850-932-8720
john@teamcomplete.com
John G. Minor, CGC, CFM, is a large loss insurance appraiser, umpire and expert witness as the president of Complete, Inc. His goal is to review your issues and use experience, training, relationships and specialized knowledge to guide his clients through the difficult challenges of property claims.

Mr. Minor is a third-generation contractor and has committed his career to the understanding of building failures for his clients. Complete serves the country out of Pensacola, Florida, and is a licensed general contractor in multiple states. We use our year of experience to understand what your issues may be and how best to resolve them successfully.

In addition to managing the business of Complete, John Minor teaches classes on restoration, appraisal and construction defect to a variety of clients through Lorman Education Services, the National Hurricane Conference and other professional trainers. These classes are offered to attorneys, adjusters, and construction industry professionals and provide CEU credit hours.

Mr. Minor has been involved in the successful discharge of hundreds of million of dollars as an expert in property claim lawsuits and disputes. His work is throughout the country and Mr. Minor has served both by the plaintiff and defense for a fair appraisal of the issues at hand.

Complete provides restoration services for the policyholders, insurance companies, counsel, and business owners throughout the Southeast as forensic engineers and construction consultants. liability claims and personal injury lawsuits arising from construction issues.
Information:  
ADA,  Appraisers,  Arbitration,  Construction,  Construction Claims,  Construction Defects,  Forensic Engineering,  Forensic Evaluation,  Hurricane Damage,  Mold and Moisture,  Water and Flood Damage, 


John G. Minor, CGC, CFM, is a large loss insurance appraiser, umpire and expert witness as the president of Complete, Inc. His goal is to review your issues and use experience, training, relationships and specialized knowledge to guide his clients through the difficult challenges of property claims.

Mr. Minor is a third-generation contractor and has committed his career to the understanding of building failures for his clients. Complete serves the country out of Pensacola, Florida, and is a licensed general contractor in multiple states. We use our year of experience to understand what your issues may be and how best to resolve them successfully.

In addition to managing the business of Complete, John Minor teaches classes on restoration, appraisal and construction defect to a variety of clients through Lorman Education Services, the National Hurricane Conference and other professional trainers. These classes are offered to attorneys, adjusters, and construction industry professionals and provide CEU credit hours.

Mr. Minor has been involved in the successful discharge of hundreds of million of dollars as an expert in property claim lawsuits and disputes. His work is throughout the country and Mr. Minor has served both by the plaintiff and defense for a fair appraisal of the issues at hand.

Complete provides restoration services for the policyholders, insurance companies, counsel, and business owners throughout the Southeast as forensic engineers and construction consultants. liability claims and personal injury lawsuits arising from construction issues.

Josephson Werdowatz & Associates, Inc.
San Diego, California
10815 Rancho Bernardo Road, Suite 310, 92127-2189


Contact:  Carl Josephson
www.jwa-se.com
858-558-2181 Or Toll Free
cjosephson@jwa-se.com
10815 Rancho Bernardo Road, Suite 310
San Diego, California 92127-2189

Contact:  Carl Josephson
www.jwa-se.com
858-558-2181
cjosephson@jwa-se.com
Josephson-Werdowatz & Associates (JWA), founded in 1988 and with licenses in twenty-five states, has provided structural design and construction defect investigations/evaluations across the United States and abroad.

Structural evaluations included wood, masonry, steel, and concrete structures, with particular emphasis on seismic and wind design. Evaluations also included code review and analysis, and standard of care analysis. JWA also has extensive experience with geotechnical structures such as special foundations, underpinning, retaining walls, tie-backs, and soil nails, among others. JWA strives for a reasoned, accurate, and practical solution to structural engineering problems and deficiencies.

Principal Structural Engineers Carl H. Josephson, PE, SE and Dan R. Werdowatz PE, SE have been retained as expert witnesses in over 1,500 cases for plaintiff and defense clients and have provided testimony in deposition or trial on over 400 occasions. Mr. Josephson has over 40 years of structural engineering experience with a BSCE from San Diego State University, is active in numerous professional organizations, and has served as the Structural Engineer member of the California Board for Professional Engineers, Land Surveyors and Geologists. Mr. Werdowatz has over 35 years of structural engineering experience with a BSCE from San Diego State University and an MS (Structures) from University of California, Berkeley. Mr. Werdowatz and Mr. Josephson also act as court-appointed neutral experts. JWA has extensive trial graphics capabilities including state-of-the-art computer models and animations.

Main Office: San Diego, California. Satellite Offices: Sacramento, California; Las Vegas, Nevada; and Scottsdale, Arizona
Information:  
Construction Defects,  Earthquake Damage,  Forensic Engineering,  Structural Engineering,  Structural Failure, 


Josephson-Werdowatz & Associates (JWA), founded in 1988 and with licenses in twenty-five states, has provided structural design and construction defect investigations/evaluations across the United States and abroad.

Structural evaluations included wood, masonry, steel, and concrete structures, with particular emphasis on seismic and wind design. Evaluations also included code review and analysis, and standard of care analysis. JWA also has extensive experience with geotechnical structures such as special foundations, underpinning, retaining walls, tie-backs, and soil nails, among others. JWA strives for a reasoned, accurate, and practical solution to structural engineering problems and deficiencies.

Principal Structural Engineers Carl H. Josephson, PE, SE and Dan R. Werdowatz PE, SE have been retained as expert witnesses in over 1,500 cases for plaintiff and defense clients and have provided testimony in deposition or trial on over 400 occasions. Mr. Josephson has over 40 years of structural engineering experience with a BSCE from San Diego State University, is active in numerous professional organizations, and has served as the Structural Engineer member of the California Board for Professional Engineers, Land Surveyors and Geologists. Mr. Werdowatz has over 35 years of structural engineering experience with a BSCE from San Diego State University and an MS (Structures) from University of California, Berkeley. Mr. Werdowatz and Mr. Josephson also act as court-appointed neutral experts. JWA has extensive trial graphics capabilities including state-of-the-art computer models and animations.

Main Office: San Diego, California. Satellite Offices: Sacramento, California; Las Vegas, Nevada; and Scottsdale, Arizona

LGI Forensic Engineering, P.C.
North White Plains, New York
7 Reservoir Road, 10603


Contact:  Steven Pietropaolo President & CEO P.E., CFEI, CFII
www.lgiforensic.com
914-670-0208 Or Toll Free
getinfo@lgiforensic.com
7 Reservoir Road
North White Plains, New York 10603

Contact:  Steven Pietropaolo President & CEO P.E., CFEI, CFII
www.lgiforensic.com
914-670-0208
getinfo@lgiforensic.com
Certified Fire and Explosive Investigator (CFEI); Certified Fire Investigator Instructor (CFII). Over 25 years engineering experience including electrical, mechanical materials, safety, fire protection and construction. Extensive knowledge of codes and standards. Expertise in forensic investigations of: Product defects, fires/explosions, accidents/injuries, building failures, electro/mechanical system failures, and utility company procedures/equipment. He has been retained on numerous large multimillion-dollar property damage cases as well as fatal accidents, fires/explosions and other grave injury matters.
Information:  
Fire and Explosions,  Forensic Engineering,  Metallurgy,  Product Liability,  Scientific and Engineering, 


Certified Fire and Explosive Investigator (CFEI); Certified Fire Investigator Instructor (CFII). Over 25 years engineering experience including electrical, mechanical materials, safety, fire protection and construction. Extensive knowledge of codes and standards. Expertise in forensic investigations of: Product defects, fires/explosions, accidents/injuries, building failures, electro/mechanical system failures, and utility company procedures/equipment. He has been retained on numerous large multimillion-dollar property damage cases as well as fatal accidents, fires/explosions and other grave injury matters.

Robertson Engineering Investigations LLC
Mesilla Park, New Mexico
P.O. Box 820, 88047


Contact:  Cale Robertson, MSME, PE, CFI-IAAI, ACTAR
www.reifire.net
575-644-9595 Or Toll Free
rei@reifire.net
P.O. Box 820
Mesilla Park, New Mexico 88047

Contact:  Cale Robertson, MSME, PE, CFI-IAAI, ACTAR
www.reifire.net
575-644-9595
rei@reifire.net
Robertson Engineering Investigations, LLC (REI) is a private forensic engineering firm that provides forensic engineering services to both the insurance and legal communities.

REI experts are court qualified Licensed Professional Engineers with extensive training, experience and certifications related to fire investigation, fire science, accident investigation and reconstruction, and general product failure analysis. REI investigators hold the distinguished Certified Fire Investigator (CFI-IAAI) certification and are also certified accident reconstructionist through the Accreditation Commission for Traffic Accident Reconstruction (ACTAR). REI is dedicated to providing accurate, complete and timely investigations that are based on scientific principles.

Identifying the root origin and cause of incidents, which have significant cost in terms of either pain and suffering or monetary loss, is the only way for society to correct, improve and/or remove defective products from harms way. This is why REI is dedicated to identifying the facts and the root cause of such incidents and will not become an advocate for one party or another.

REI Location Google Maps Zoomed Out REI's regular service areas include New Mexico, Texas and Arizona, including Albuquerque, Santa Fe, Las Cruces, El Paso, Dallas, Phoenix, and Tucson. REI staff are fluent in Spanish.
Information:  
Accident Investigations,  Accident Reconstruction,  Commercial Vehicle Accident Reconstruction,  Construction Accidents,  Construction Claims,  Construction Defects,  Electrical Engineering,  Engineering,  Failure Analysis,  Fire and Explosions,  Fire Origin and Cause,  Fire Protection Investigations,  Forensic,  Forensic Engineering,  Hail Damages,  Lab Testing and Analysis,  Mechanical Engineering,  Motorcycle Accident Reconstruction,  Product Failure,  Reconstruction,  Roofing,  Roofing and Waterproofing,  Slip, Trip, and Fall,  Structural Engineering,  Structural Failure,  Stucco, 


Robertson Engineering Investigations, LLC (REI) is a private forensic engineering firm that provides forensic engineering services to both the insurance and legal communities.

REI experts are court qualified Licensed Professional Engineers with extensive training, experience and certifications related to fire investigation, fire science, accident investigation and reconstruction, and general product failure analysis. REI investigators hold the distinguished Certified Fire Investigator (CFI-IAAI) certification and are also certified accident reconstructionist through the Accreditation Commission for Traffic Accident Reconstruction (ACTAR). REI is dedicated to providing accurate, complete and timely investigations that are based on scientific principles.

Identifying the root origin and cause of incidents, which have significant cost in terms of either pain and suffering or monetary loss, is the only way for society to correct, improve and/or remove defective products from harms way. This is why REI is dedicated to identifying the facts and the root cause of such incidents and will not become an advocate for one party or another.

REI Location Google Maps Zoomed Out REI's regular service areas include New Mexico, Texas and Arizona, including Albuquerque, Santa Fe, Las Cruces, El Paso, Dallas, Phoenix, and Tucson. REI staff are fluent in Spanish.

Shatec Engineering Consultants, LLC
El Dorado Hills, California
7064 Tarvisio Way, 95762


Contact:  Shakir Shatnawi Ph.D., PE
www.shatec.net
916-990-6488 Or Toll Free
sshatnawi@shatec.net
7064 Tarvisio Way
El Dorado Hills, California 95762

Contact:  Shakir Shatnawi Ph.D., PE
www.shatec.net
916-990-6488
sshatnawi@shatec.net
Dr. Shakir Shatnawi has a Ph.D. in Transportation Engineering and Pavement Design, and Masters in Construction Management with over 27 years of practical and extensive engineering and transportation expertise covering industry and public agencies including Caltrans and FHWA. Currently providing expert witness services, expert testimony and litigation support to attorneys and legal entities on cases related to accident reconstruction, analysis, design standards, construction specifications, guidelines, policies, public agency practices, transportation, roads, pavements, airports, materials, highway geometric design, drainage, asphalt, concrete, soil, repairs, maintenance, inspections, rehabilitation, construction quality control - quality assurance, construction claims, inspection, settlement, dispute resolution, pavement surface conditions such as friction, skid resistance, surface discontinuities, cracking, rutting, defects, potholes and roughness, failure investigations, forensic engineering, traffic, safety standards, construction work zone accidents, construction safety, safety operating procedures, roadside hazards, signage, sight distance requirements, ADA requirements, code violations, and engineering analysis.
Information:  
Accident Investigations,  Accident Reconstruction,  Civil Construction and Engineering,  Civil Engineering,  Concrete and Masonry,  Construction,  Construction Claims,  Construction Defects,  Failure Analysis,  Forensic Engineering,  Government,  Materials Science,  Motorcycle Accident Reconstruction,  Parking Lots,  Safety,  Safety Engineering,  Slip, Trip, and Fall,  Traffic Engineering,  Transportation, 


Dr. Shakir Shatnawi has a Ph.D. in Transportation Engineering and Pavement Design, and Masters in Construction Management with over 27 years of practical and extensive engineering and transportation expertise covering industry and public agencies including Caltrans and FHWA. Currently providing expert witness services, expert testimony and litigation support to attorneys and legal entities on cases related to accident reconstruction, analysis, design standards, construction specifications, guidelines, policies, public agency practices, transportation, roads, pavements, airports, materials, highway geometric design, drainage, asphalt, concrete, soil, repairs, maintenance, inspections, rehabilitation, construction quality control - quality assurance, construction claims, inspection, settlement, dispute resolution, pavement surface conditions such as friction, skid resistance, surface discontinuities, cracking, rutting, defects, potholes and roughness, failure investigations, forensic engineering, traffic, safety standards, construction work zone accidents, construction safety, safety operating procedures, roadside hazards, signage, sight distance requirements, ADA requirements, code violations, and engineering analysis.

The Kilpatrick Group, PA.
Jamestown, North Carolina
3397 Cherrybrook Drive, 27282


Contact:  Gary E. Kilpatrick
www.thekilpatrickgrouppa.com
336-841-6354 Or Toll Free
kilpatrickg1@northstate.net
3397 Cherrybrook Drive
Jamestown, North Carolina 27282

Contact:  Gary E. Kilpatrick
www.thekilpatrickgrouppa.com
336-841-6354
kilpatrickg1@northstate.net

Gary Kilpatrick's CV


Gary E. Kilpatrick and Associates, P.A. is a forensics engineering firm dedicated to the application of the art, science and methodology of engineering and the scientific method to answer questions of fact in the jurisprudence system pertaining to personal injury and wrongful death concerning accidents and product defects and failures.
Information:  
Accident Investigations,  Accident Reconstruction,  Aerial Lifts,  Amusement Parks,  Analysis,  ANSI Standards,  Automobile Accidents,  Automotive,  Commercial Vehicle Accident Reconstruction,  Computer Animation,  Conveyors,  Cranes,  Crash Data Retrieval,  Elevators and Escalators,  Farms and Farm Safety,  Food Manufacturing,  Forensic Engineering,  Forklifts,  Forklifts and Cranes,  Forklifts and Cranes,  Human Factors,  Industrial Accidents,  Industrial Accidents,  Industrial Equipment,  Job Safety Analysis,  Labels and Warnings,  Ladders and Manlifts,  Machine Safety,  Manufacturing Accidents,  Material Handling,  Motorcycle Accident Reconstruction,  OSHA,  Pipeline Pressure Vessels Failure,  Product Warnings,  Safety,  Safety Audit,  Safety Engineering,  Safety Occupational,  Warehouse and Storage,  Workers' Compensation, 


Gary Kilpatrick's CV


Gary E. Kilpatrick and Associates, P.A. is a forensics engineering firm dedicated to the application of the art, science and methodology of engineering and the scientific method to answer questions of fact in the jurisprudence system pertaining to personal injury and wrongful death concerning accidents and product defects and failures.

Cain and Associates Engineers and Constructors, Inc.
Mobile, Alabama
1209 Montlimar Dr. , Suite 675, 36609


Contact:  Hal K. Cain, PE
www.hkcain.com
251-473-7781 Or Toll Free
HalKCain@aol.com
1209 Montlimar Dr. , Suite 675
Mobile, Alabama 36609

Contact:  Hal K. Cain, PE
www.hkcain.com
251-473-7781
HalKCain@aol.com
Cain & Associates Engineers & Constructors, Inc. is an Engineering and Construction Management firm that also specializes in forensic engineering investigations and analysis of construction claims defects. We have a staff that consists of Structural Engineers, Civil Engineers (Drainage), Mechanical Engineers, Master Plumber, HVAC Specialists, Roofing Specialists, EIFS specialists, Flooring Specialists, Construction Managers, and Master Electrician and electrical engineer. Our personnel have hands-on engineering and construction experience. Construction Management experts in heavy industrial, commercial and residential structures.
Hal is a Professional Engineer in five states, P.E., Certified Structural Engineer, EIFS Third Party Certification, and Licensed G.C. in Alabama and Louisiana.
Information:  
Building Envelope Forensics,  Construction,  Construction Claims,  Construction Defects,  Construction Delays,  Construction Management,  Electrical,  Engineering,  Fire and Explosions,  Forensic Engineering,  Mechanical Engineering,  Roofing and Waterproofing,  Structural Engineering, 


Cain & Associates Engineers & Constructors, Inc. is an Engineering and Construction Management firm that also specializes in forensic engineering investigations and analysis of construction claims defects. We have a staff that consists of Structural Engineers, Civil Engineers (Drainage), Mechanical Engineers, Master Plumber, HVAC Specialists, Roofing Specialists, EIFS specialists, Flooring Specialists, Construction Managers, and Master Electrician and electrical engineer. Our personnel have hands-on engineering and construction experience. Construction Management experts in heavy industrial, commercial and residential structures.
Hal is a Professional Engineer in five states, P.E., Certified Structural Engineer, EIFS Third Party Certification, and Licensed G.C. in Alabama and Louisiana.

Managed Response, Inc.
Sugar Land, Texas
77 Sugar Creek Center Boulevard Suite 210, 77478


Contact:  Michael D. Stall, MSCE, PE, DFE
www.mribuilds.com
713-906-0181 Or Toll Free
mike@mribuilds.com
77 Sugar Creek Center Boulevard Suite 210
Sugar Land, Texas 77478

Contact:  Michael D. Stall, MSCE, PE, DFE
www.mribuilds.com
713-906-0181
mike@mribuilds.com
Michael D. Stall, MSCE, PE, DFE is a Registered Professional Engineer (#65893) in Texas and is a National Academy of Forensic Engineers Board Certified Forensic Engineer (DFE). Mr. Stall earned a Master’s of Science in Civil Engineering from Stanford University and a Bachelor’s of Science in Architectural Engineering from the University of Texas at Austin. Mr. Stall is founder and President of Managed Response, Inc. (MRI), a Texas Registered Professional Engineering firm (#00546) and a general contracting company that specializes in evaluation and repair of distressed properties. Mr. Stall has worked as an expert witness in resolution of design and construction disputes during the past 12 years.

Mr. Stall has over 40 years of construction experience as a carpenter, ironworker, foreman, supervisor, engineer, scheduler and construction manager for shopping centers, single-family homes, multi-family buildings, manufacturing plants, power plants and medical facilities. He has evaluated numerous damaged buildings during the past 25 years that have suffered damage from fires, explosions, hurricanes, earthquakes, tornados, hail storms, design defects and construction defects. He has published peerreviewed articles in the Journal of the National Academy of Forensic Engineers about evaluation of construction defects and resolution of schedule delay claims.

MRI has been in business since 1998 and continues to perform construction and renovation work in addition to consulting. This real-world experience contributes to our professional engineering and expert witness work. MRI also has over 20 years of experience evaluating and quantifying building damage using the Xactimate estimating system.
Information:  
Construction Claims,  Construction Defects,  Construction Management,  Disaster Recovery Planning,  Forensic Engineering, 


Michael D. Stall, MSCE, PE, DFE is a Registered Professional Engineer (#65893) in Texas and is a National Academy of Forensic Engineers Board Certified Forensic Engineer (DFE). Mr. Stall earned a Master’s of Science in Civil Engineering from Stanford University and a Bachelor’s of Science in Architectural Engineering from the University of Texas at Austin. Mr. Stall is founder and President of Managed Response, Inc. (MRI), a Texas Registered Professional Engineering firm (#00546) and a general contracting company that specializes in evaluation and repair of distressed properties. Mr. Stall has worked as an expert witness in resolution of design and construction disputes during the past 12 years.

Mr. Stall has over 40 years of construction experience as a carpenter, ironworker, foreman, supervisor, engineer, scheduler and construction manager for shopping centers, single-family homes, multi-family buildings, manufacturing plants, power plants and medical facilities. He has evaluated numerous damaged buildings during the past 25 years that have suffered damage from fires, explosions, hurricanes, earthquakes, tornados, hail storms, design defects and construction defects. He has published peerreviewed articles in the Journal of the National Academy of Forensic Engineers about evaluation of construction defects and resolution of schedule delay claims.

MRI has been in business since 1998 and continues to perform construction and renovation work in addition to consulting. This real-world experience contributes to our professional engineering and expert witness work. MRI also has over 20 years of experience evaluating and quantifying building damage using the Xactimate estimating system.

Compass Consulting Engineers
Broomfield, Colorado
10875 Dover St, 80021


Contact:  Kyle Heer, M.S., P.E.
compassengineer.com
720-458-9190 Or Toll Free
kheer@compassengineer.com
10875 Dover St
Broomfield, Colorado 80021

Contact:  Kyle Heer, M.S., P.E.
compassengineer.com
720-458-9190
kheer@compassengineer.com
Since 2018, Kyle Heer has been involved in the analysis and reconstruction of hundreds of motor vehicle crashes including rollovers, multi-vehicle impacts, motorcycles, heavy trucks and pedestrian impacts throughout the United States. In addition to motor vehicle accidents, Kyle has reconstructed and analyzed a variety of incidents from a biomechanical perspective, which gives him a unique perspective on the cases he investigates. Kyle has substantial experience in analyzing data downloaded from vehicles, incorporating this data along with vehicle-specific parameters and other physical evidence into dynamic vehicle computer simulations to aid in accident reconstruction.
Information:  
Accident Reconstruction,  Bicycle Reconstructions,  Biomechanics,  Biomedical and Biomechanical Injury Analysis,  Forensic Engineering,  Motor Vehicles,  Motorcycle Accident Reconstruction, 


Since 2018, Kyle Heer has been involved in the analysis and reconstruction of hundreds of motor vehicle crashes including rollovers, multi-vehicle impacts, motorcycles, heavy trucks and pedestrian impacts throughout the United States. In addition to motor vehicle accidents, Kyle has reconstructed and analyzed a variety of incidents from a biomechanical perspective, which gives him a unique perspective on the cases he investigates. Kyle has substantial experience in analyzing data downloaded from vehicles, incorporating this data along with vehicle-specific parameters and other physical evidence into dynamic vehicle computer simulations to aid in accident reconstruction.

Polymer Testing of St. Louis, Inc.
Climax Springs, Missouri
44 Alley Lane, 65324


Contact:  Stephen J. Callan
polymertesting.com
636-394-1480 Or Toll Free
polymertesting@msn.com
44 Alley Lane
Climax Springs, Missouri 65324

Contact:  Stephen J. Callan
polymertesting.com
636-394-1480
polymertesting@msn.com

Stephen J. Callan's CV


Thirty seven year career in Polymer Chemistry. Founder, President & Technical Director of Polymer Testing of St. Louis, Inc. since 1989. Personally conducted more than 3,000 Military and Industrial Failure Analyses. Mr. Callan has had a twenty six year career as an Expert Legal Witness. He has been used as an Expert Legal Witness in more than 50 cases involving Product Failure, Medical Malpractice, Pharmaceutical Contamination, Violation of FDA regulations, Failure to Warn, Fire, Explosion, Chemical Exposure, Personal Injury, Death, Murder, Environmental Contamination, Patent Infringement and IP theft. He has testified in State Court, State Supreme Court and Federal Court. Mr. Callan has been used as an Expert in Polymer Chemistry/Materials Analysis/Failure Analysis & Reverse Engineering by 64 Independent Testing Laboratories, 35 Automotive Component Manufacturers, 26 Coatings/Adhesives Manufacturers, 30 Composite/Aerospace/Military Manufacturers, 12 Environmental/Agricultural Product Manufacturers, 20 Packaging Manufacturers, 14 Electronics Manufacturers, more than 260 Plastic Manufacturers/Raw Material Suppliers, The U.S. Navy, The U.S. Army and NASA. EDUCATION B.S. Analytical Chemistry/Physics - Southwest Missouri State University M.S. Polymer Chemistry - University of Missouri Rolla (Missouri Science & Technology) M.S. Engineering Management - University of Missouri Rolla (Missouri Science & Technology) PRIMARY AREA OF EXPERTISE Military and Industrial Failure Analysis Product Contaminant Identification Reverse Engineering Expert Legal Testimony
Information:  
Chemicals,  Chemistry,  Coatings, Sealants, and Paints,  Construction Claims,  Corrosion Engineering,  Failure Analysis,  Forensic Chemistry,  Forensic Engineering,  Intellectual Properties,  Materials Science,  Medical Devices,  Personal Injury,  Plastics,  Product Failure,  Product Warnings,  Roofing and Waterproofing,  Structural Failure, 


Stephen J. Callan's CV


Thirty seven year career in Polymer Chemistry. Founder, President & Technical Director of Polymer Testing of St. Louis, Inc. since 1989. Personally conducted more than 3,000 Military and Industrial Failure Analyses. Mr. Callan has had a twenty six year career as an Expert Legal Witness. He has been used as an Expert Legal Witness in more than 50 cases involving Product Failure, Medical Malpractice, Pharmaceutical Contamination, Violation of FDA regulations, Failure to Warn, Fire, Explosion, Chemical Exposure, Personal Injury, Death, Murder, Environmental Contamination, Patent Infringement and IP theft. He has testified in State Court, State Supreme Court and Federal Court. Mr. Callan has been used as an Expert in Polymer Chemistry/Materials Analysis/Failure Analysis & Reverse Engineering by 64 Independent Testing Laboratories, 35 Automotive Component Manufacturers, 26 Coatings/Adhesives Manufacturers, 30 Composite/Aerospace/Military Manufacturers, 12 Environmental/Agricultural Product Manufacturers, 20 Packaging Manufacturers, 14 Electronics Manufacturers, more than 260 Plastic Manufacturers/Raw Material Suppliers, The U.S. Navy, The U.S. Army and NASA. EDUCATION B.S. Analytical Chemistry/Physics - Southwest Missouri State University M.S. Polymer Chemistry - University of Missouri Rolla (Missouri Science & Technology) M.S. Engineering Management - University of Missouri Rolla (Missouri Science & Technology) PRIMARY AREA OF EXPERTISE Military and Industrial Failure Analysis Product Contaminant Identification Reverse Engineering Expert Legal Testimony