Accident Investigation and Reconstruction Expert Witnesses: 81

John L. Ryan, BSME, P.E. is a Mechanical Engineer who provides general Mechanical and Structural Engineering expertise. Mechanical and Safety Engineering (MASE) provides full service analysis and accident reconstruction of products involved in accidents. 

Mr. Ryan's services have been requested for attorneys and insurance companies needing forensic engineering expert witness testimony to determine whether machinery and products involved in injury cases were adequately designed or whether they have a Design, Manufacturing, or Material Defect. All products are lab-tested on site to determine adherence to industry standards and engineering design protocol. Alternate preventative designs are developed when none exist commercially. 

Mr. Ryan is available for both Plaintiff and Defense, depending on the individual case. His services include producing high quality reports and visual aids in the courtroom such as scale models to help explain accident scenarios and alternate designs to judges and juries. 

Areas of Expertise:

• Accident Investigation and Reconstruction
• Machine Guarding Accident Investigation
• Climbing Gym Accidents
• Belay Device Failure
• Rock Climbing Accidents
• Fall Protection Failures
• Ladder Failure Investigation
• Tree Stand Failures
• Industrial Accidents
• Power Press Accidents
• Connection Failures
• Bolt Failures
• Weld Failures
• Testing Products to Industry Standards to Determine Compliance
• Design Defect Analysis
• Structural Analysis of Buildings
• Product Liability Investigations
• General Engineering Injuries and Issues
• Industrial safety
• Engineering Continuing Education
• Product Certification

View John Ryan's Consulting Profile.

Mari S. Truman, PE, has more than 40 years of experience in Orthopedic Product Design and Development. As Principal Engineer with her company, Orthobiomech, LLC, she acts as an R&D design and development consultant to the orthopaedic industry and an injury biomechanics and medical device forensic expert. Ms. Truman's design experience includes implants and instrumentation systems used to repair fractured bones, torn ligaments and/or to reconstruct spine, knee, wrist, hip, ankle, elbow, thumb based cmc, and other finger and toe joints for many of the USA based orthopaedic conglomerates and a few Asian, Australian and European firms. Having designed and developed implants and instruments used for both human joint reconstruction and skeletal trauma repair, Ms. Truman is named on 12 Orthopaedic Patents and frequently gives talks on implant design and injury biomechanics on topics such as: knee and thumb-based joint surfaces and kinematics, joint design, rapid prototyping, medical device design control, and injury biomechanics. Litigation Support - Ms. Truman has been providing Forensic Impact and Injury Biomechanics and Orthopedic Biomechanics to the legal industry for over 15 years. She draws on her strong knowledge of FDA and ISO EN13485 compliant design control processes, failure modes and effects analysis, clinically relevant tissue loading, and design safety assurance, including device performance requirements and warnings, during her medical device litigation reviews. Ms. Truman has a strong knowledge of the production and quality assurance processes used in the manufacture, cleaning, and sterilization of medical devices and the effects of such processes on product performance. Analysis of Traumatic Injuries Related To:

View OrthoBioMech LLC's Consulting Profile.

D. Larry Dunville has over 45 years of Overhead Crane experience. Mr. Dunville has built, installed, engineered, estimated, sold, and serviced overhead bridge cranes. He has sat on the industry committees that wrote the crane specs for the steel industry, written articles, and taught professional architects and engineers about the special requirements required when designing buildings that will house overhead cranes. Larry was formerly the Executive Director of the Crane Certification Association of America and is currently on the ASME/ANSI B30.2 Overhead and Gantry Cranes Committee, ASME/ANSI B30.16 Overhead Hoists, and AIST (American Institute of Steel Technology) TR-13 Guide for the Design and Construction of Mill Buildings.

Business Experience

Mr. Dunville was the Owner and president of Dearborn Crane & Engineering Co., a builder and installer of overhead cranes and crane runway systems, from 1975 to 2012.  Mr. Dunville is the Owner and President of Overhead Crane Consulting, LLC (2016 to present). 

Speaking Engagements

Larry speaks on crane safety, crane inspection, and runway design. In the last year, he has spoken to AIST (American Institute of Steel Technology), CCAA (Crane Certification Association of America), CMAA (Crane Manufacturers Association of America), and FEWA (Forensic Expert Witness Association). 

D. Larry Dunville's Video Introduction 

Litigation Support—Larry Dunville offers expert witness services in crane cases involving industrial, manufacturing, mining, warehousing facilities, and power plants. His expertise is available to counsel representing both Plaintiffs and Defendants. 

Areas of Expertise:

View D. Larry Dunville's Consulting Profile.

Page Engineering is a professional consulting firm that combines Ergonomics, Industrial Engineering, and Health and Safety expertise. They have served industry leaders in the areas of Transportation, Shipping, Manufacturing, and Health Care throughout the United States and Canada. Established in 1994, their approach is bolstered by years of litigation scrutiny and backed by extensive application of ergonomics, human factors, epidemiologic, and occupational medical scientific literature. They specialize in human factors and ergonomics assessments, including both acute and cumulative exposures and their hands-on approach is backed by extensive research and measurement of actual work exposure to occupational physical factors and workplace design.

Litigation Support - The professionals at Page Engineering provide forensic engineering and root cause analysis expert witness services to counsel representing both Plaintiff and Defense. Their areas of expertise include:

George B. Page, CPE, is a Certified Professional Ergonomist. Since founding Page Engineering, Mr. Page has been providing ergonomics services, integrating multiple disciplines (industrial engineering, safety, health, business, regulatory) to provide effective results, whether in the application of job analyses and job improvement processes or in physical job demands analyses. His experience includes conducting ergonomics analyses and research in the railroad industry, primarily, and in heavy industry, in general, for over 30 years. Clients include Union Pacific Railroad, Kansas City Southern Railways, Association of American Railroads, FedEx, American Petroleum Institute, Food Marketing Institute, Food Distributors International, Blue Water Bridge Authority, USPS. His expertise includes job exposure assessments, physical demands assessments, accident reconstruction, and forensic engineering.

Greg G. Weames, CPE, CCPE, CRSP, is a Certified Professional Ergonomist who provides forensic services regarding Musculoskeletal Injury / Disorder Risk and expert testimony. Since joining Page Engineering, Inc., Mr. Weames has been asked to provide consulting services in ergonomics for over 500 cases involving civil lawsuit work-related injury/disorder claims. With training, education, and experience in musculoskeletal injury and musculoskeletal disorder as a focus, he applies generally accepted methodology in his analysis of causation to a reasonable degree of scientific certainty. Mr. Weames has his expert witness experience from within the railroad industry, which includes transportation, construction maintenance, mechanical shop, communications, and office environments that support a large variety of jobs and work tasks. Over the past 20 years of providing expert witness services, Mr. Weames has relied on independent, objective measurements of claimed exposures to occupational physical factors and the epidemiologic scientific literature, relevant ergonomics guidelines, and standards to support his opinions. Mr. Weames has given depositions and has appeared at jury trials in both State and Federal US courts during his years doing expert witness work.

Stephen D. Fleming, CPE, CXLT, is an Industrial Engineer / Ergonomist whose background includes analyzing work environments and work tasks using industrial engineering work measurement methods and risk assessment models for different body regions. His expertise is in assisting industrial clients in applying ergonomics to workplace processes, tools, and equipment, including all major North American railroads, FedEx, Ford Motor Company, Lear Seating, USPS, and the Blue Water Bridge Authority. Mr. Fleming has been acknowledged for developing and implementing a methodology for measuring and analyzing exposure to whole-body vibration (WBV) and hand-arm vibration (HAV).

View Page Engineering's Consulting Profile.

Greg Coulson is an Equestrian Expert Witness and Consultant with 50 years of professional equestrian experience.  He has trained horses and people across the United States in a wide variety of equestrian activities.  He has organized and managed large and small equestrian education programs, clinics, trail rides, camps, and competitions.  He is also past Instructor, Course Designer, Rally and Exam Organizer, District Commissioner and  Regional Supervisor of the United States Pony Clubs Inc.  He continues to own and operate a full service equestrian center.

Education/Training: BS Animal Science, U.C. Davis BA Anthropology, U.C. Davis MA Educational Leadership, Cal State, Northridge CA Community College Instructor's Credential, Horsemanship.

Awards/Honors: Selected to be Cross Country Fence Judge for 1984 Olympic Games; Trained and coached the 1985 United States Eventing Association's Reserve National Champion Young Rider (Fritz Cup); Trained and coached the highest scoring rider / horse in Dressage at 2014 United States Pony Club Championships; Trained and coached numerous high placing teams in USPC National Championships

Litigation Support - Greg Coulson has been an Equestrian Expert since 2010 with experience in accident reconstruction, writing reports, and testifying in depositions, arbitrations, and trials for both plaintiffs and defendants. He is available to analyze and explain equine industry standards, horse behavior, equestrian accidents, situations, and issues. Mr. Coulson can organize complex sets of facts to provide logical descriptions for attorneys, judges, and juries. He combines extensive education in horsemanship, science, and teaching with a wealth of practical experience.  He is impartial, unusually clear, and articulate.  

Areas of Expertise:

Pool Operation Management (POM), founded in 1980, is an Aquatics Safety and Risk Management firm that is nationally recognized for pool consulting services including liability and risk management, compliance with governmental regulations, facility operations, mechanical questions, and personnel requirements. Trevor A. Sherwood II has extensive experience in the swimming pool industry, with 30 years of experience in service, consulting, training and education, code/regulations development, and expert witness. He has contributed to aquatic textbooks and related articles, influenced State Recreational Bathing Codes, and presented at national industry conferences. He has provided leadership to such organizations as National Swimming Pool Foundation (NSPF), Northeast Spa & Pool Association (NESPA), Community Association Institute - New Jersey Chapter (CAI), New Jersey Apartment Association (NJAA), New Jersey Parks and Recreation Society (NJPRS), Pennsylvania Parks and Recreation Society (PRPS) and New Jersey and Massachusetts Health Departments. He has been retained by attorneys for both Plaintiff and Defense. Mr. Sherwood's extensive swimming pool consulting experience qualifies him to appear in court on the following matters:

View Consulting Profile.

Principle Forensics is a national Media Forensics Laboratory. They Recover, Authenticate, Enhance, and Analyze all types of recorded evidence, including Video, Audio, and Digital Images. Principle Forensics backs all their work with experienced, highly trained, expert testimony.

Nick Barreiro, BAC, AVFA, DIVRT, AFCE, Chief Forensic Analyst, is a Certified Audio Video Forensic Analyst and an FBI-trained member of the Digital Imaging and Video Recovery Team. During his 15-year law enforcement career, he was a patrol sergeant, technology project manager, media forensics expert, detective, digital evidence specialist, and patrol officer. Prior to his career in law enforcement, Mr. Barreiro was an audio engineer and producer in California. He also worked for KBMB radio in Sacramento and has extensive experience and training in audio enhancement and analysis.

Mr. Barreiro works with attorneys representing plaintiffs and defendants in civil or criminal matters in which Audio, Video, or Image Evidence plays a key role. He has tremendous technical knowledge and training, but also extensive experience on the witness stand.

Mr. Barreiro has conducted hundreds of forensic audio, video, and image investigations in the United States and internationally. He has enhanced and analyzed thousands of digital files, ranging from simple slip-and-fall cases and minor traffic accidents to complex investigations such as homicides and officer-involved shootings. He has been court-certified as an expert and provided expert testimony in criminal cases and civil litigation in federal and state court. A highly trained and experienced forensic analyst, he provides technically detailed and precise results with expedited turnaround times.

Video, Audio, and Image Forensics

As an arbitrator, structural/civil engineer, and expert forensic consultant with nearly four decades of experience, Casey Hemmatyar has provided extensive expert services for defendants’ and plaintiffs’ attorneys on numerous construction litigation matters throughout the United States and Canada.

He has been retained as an expert engineer in over one hundred litigation matters on single and class-action legal cases by the U.S. government, law firms, and insurance carriers at the State and Federal levels, working with both plaintiff and defendant sides.

A partial list of litigation cases is available upon request. His understanding of core engineering and legal concepts has enabled him to assist a wide range of clientele effectively. He brings diversified experience in structural and civil engineering design and forensic engineering, investigation, and evaluation.

He also conducts research, has assisted in the development of building codes and standards, and has supervised the construction of domestic and international projects. His experience includes special structures and new buildings as well as modifications, alterations, seismic/hurricane retrofits, and upgrades to existing structures. He has provided failure analysis, expert consultation, structural forensic investigation, and damage assessment services for numerous litigation and insurance-related matters.

He actively presents continuing education lectures to audiences of licensed engineers, architects, and general contractors on topics of structural and forensic engineering throughout North America. Mr. Hemmatyar has been the principal structural engineer on high-profile projects for prestigious clients, including NASA and other notable organizations.  Currently, he directs PSFEG and has served as Director for SEAOSC from 2011 to 2013.

His work encompasses a diverse range of structures, including hospitals,  educational institutions (including schools and universities), telecommunication centers, aviation facilities, government buildings, laboratories, as well as commercial, industrial, and residential structures.

R. Kevin Smith PE, BSME, MMAE, has been a specialist in Engineering Forensic Safety and Design for 35 years. He has consulted on over a 1,000 matters nationwide. Mr. Smith is a registered professional engineer and holds a BSME and MMAE from the Illinois Institute of Technology in Chicago. He is board certified forensic engineer through the National Academy of Forensic Engineers. He specializes in Material Handling Equipment Safety, including lift trucks, dock safety, truck loading, conveyors, and aerial work platform safety. 

Mr. has been actively involved as a member of the committee that writes the Safety Standard for Low Lift and High Lift Trucks (ASME/ANSI B56.1) for over 30 years. He also serves on the B56.6 committee (rough terrain lift trucks) and the ANSI A92.5 and A92.6 subcommittees (self-propelled elevating work platforms).

 Litigation Support - Mr. Smith formerly worked for Triodyne, Inc. for over 15 years as a forensic engineer/principal engineer. As President of R. K. Smith Engineering Inc., for over 25 years, he currently has a laboratory for examination and testing,and owns or has access to varied testing equipment and tools.He has testified at depositions and trials on several hundred matters. Mr. Smith has performed hundreds of investigations into product failures involving injury and property damage, and has reconstructed numerous accidents. His expertise is available to counsel representing both Plaintiff and Defendant. Mr. Smith also was previously on the Adjunct Math faculty at Prairie State College for 13 years. 

Areas of Expertise:

View R. Kevin Smith's Consulting Profile.

Since 1988, Real-World Forensic Engineering, LLC ("RWFE") has provided engineering services to industries and government labs, as well as litigation support to both plaintiff and defense attorneys practicing in many areas.

RWFE Areas of Expertise Include:

At RWFE, we proudly distinguish ourselves by our Four C's:

CREDENTIALS. COMPETENCE. CREDIBILITY. COMMUNICATION.

Design Evaluation – Accident Investigation – Intellectual Property - Failure Analysis – Fire Cause & Origin – Component Testing - Computer Aided Drafting – Accident Animation - Expert Witness & Litigation Support

www.ExpertEngineering.com

Consultants. Experts. Innovators.™

Operating from more than 110+ offices around the globe, we provide services to corporations, insurance companies, law firms, and government agencies.

Rimkus Life Sciences experts have a wealth of specialized expertise to help clients comprehend and improve how humans interact with their facilities, products, and systems.

Our experts offer significant professional experience related to studying and understanding human behavior and experience. Our experts have extensive knowledge involving but not limited to human health and medical devices, warnings and signage, perception and reaction, medicine and patient care, and health and sports activity.

The scientists, engineers, and researchers in Rimkus Life Sciences specialize in human based research to support product design and development, product validation, and development of instructions and warnings for use. Our experts work with clients across the globe in every major product sector. They understand how to leverage rigorous research and thoughtful analysis with creative problem solving to support the development of products.

Rimkus Global Services Overview

LIFE SCIENCE EXPERTISE

Biomedical Engineering

Human Factors

Legal Nurse Consulting

Product Safety

Sports Science Consulting

Toxicology Food Safety

View our full suite of Life Sciences Expert Services.

GLOBAL OFFICES

Rimkus operates from 110+ offices worldwide, with headquarters in the following cities.

View a full list of Rimkus Office Locations.

View Rimkus Quantum and Delay Expert Services Profile.
View Rimkus Forensic Expert Services Profile.

Joel Beal is an expert in Truck Technology with a focus on electronic logging devices (ELDs), telematics, regulatory compliance, and accident analysis. He is a nationally recognized expert with over 35 years of experience.

Mr. Beal's clients have included Alphabet, Inc., Amazon.com, Inc., Chevron Corporation, ExxonMobil Corporation, FedEx Corporation, Matheson, Inc., Meta Platforms, Inc., Microsoft Corporation, Petco, Inc., Sysco Corporation, and many others.

Litigation Support: Mr. Beal provides expert testimony for legal proceedings, grievance hearings, depositions, and trials. He also assists in patent and intellectual property cases. Mr. Beal provides services to attorneys representing trucking companies, private fleets, and commercial drivers, as well as for-hire trucking companies, private fleets, and transportation trade associations.

Mr. Beal delivers clear, data-driven insights to support causation and liability arguments. He has provided expert testimony in both state and federal courts.

Areas of Expertise:

Background Experience: Mr. Beal experience includes leadership in system design, regulatory advisory roles, and extensive involvement with commercial fleet operations. His education includes US, Canadian, State, and Provincial Commercial Motor Vehicles, legislation, regulations, and requirements.

From 2016-2020, Mr. Beal worked with North American Dispatch Systems, LLC, dba LoadTrek Software. LoadTrek, which provided TMS and telematics to specialized fleets in the postal and parcel sectors. In his role as General Manager and VP/Sales he was responsible for sales, training, and support of the LoadTrek TMS, which included dispatch software and ELD.

From 1994-2007, Mr. Beal served as Senior VP for Tripmaster Corporation, which invented Onboard Computers for trucks in 1978. Tripmaster provided systems for most of the US Fortune 500 companies who had private fleets.

View Rockwell Technology's Consulting Profile.

Greg Gerganoff, CSP, Esq., possesses extensive experience in safety compliance and practice involving OSHA and MSHA.  He obtained is law degree from Western Michigan University, Cooley Law School and practiced general civil law for approximately 12 years in Colorado prior to entering the safety profession. Mr. Gerganoff earned a Certified Safety Professional certification and has 18 years of field safety experience in mining, oil and gas, construction, manufacturing, power plant outages, and light rail construction.

His professional safety experience includes OSHA / MSHA Safety field work and compliance with experience in the heavy construction, manufacturing, light rail construction, power plant outages, public schools, oil and gas, mining, pipeline, and trenching and excavation industries.

• Authorized Outreach Trainer for OSHA General Industry.
• PEC Safeland Basic and Core instructor (Oil and gas).
• MSHA Approved Instructor (Blue Card) for Surface, Metal/nonmetal.
• Member of the American Society of Safety Professionals.

Litigation Support: Mr. Gerganoff assists with discovery questions regarding safety matters. Safety opinions based upon statutory, administrative, judicial rulings and related industry association safety policies ancillary to OSHA and MSHA.  Mr. Gerganoff is retained by attorneys for both Plaintiff and Defendant. Some of the subject matter litigation he has handled include:

View Greg Gerganoff's Consulting Profile.

Michael C. Wright, PE, CSP, CPE, is a Professional Engineer with over 40 years of academic, practical, and specialized knowledge of Engineering, Construction, Safety, Maintenance, Demolition, and Training in general industry and construction activities. Mr. Wright's expertise is a definite plus in providing clients with leading-edge information and insight. A licensed and practicing engineer, he rounds out his knowledge as a Certified Safety Professional (CSP) and Certified Plant Engineer to provide an insightful and accurate understanding of the issues involved in a case. 

Mr. Wright has completed over 600 hours of specialized safety training, serves on ANSI and ASTM Standards committees, and provides a thorough knowledge of OSHA Regulations, Directives, and Letters of Interpretation. A recognized author, presenter, and trainer, Mr. Wright communicates the issues clearly for all to understand. His expert witness experience is a balanced blend of defense, plaintiff, and OSHA Solicitor cases. He is licensed in 46 states. 

Areas of Expertise:

View Mr. Wright's Curriculum Vitae

Michael P. Lawler, MS, CSP, ASP, CHST, is a Construction Safety Expert with over 30 years of experience. He offers a unique combination of formal education and "project based" technical experience working on some of the largest construction projects in the United States. 

Litigation Support - Mr. Lawler's experience includes over 50 OSHA inspections and associated negotiation and defense preparation related to OSHA citations.   His background allows him to opine on OSHA Standards and Contract Responsibility with a demeanor of care and confidence. 

Mr. Lawler is an expert at applying OSH Act of 1970 standards, CFR 1926 & 1910 regulations, policies, construction industry practices, contract responsibility, incident investigation, and accident reconstruction. Mr. Lawler analyzes how post incident details and investigations should be completed and who is responsible per the OSHA Standard and construction industry practices. He is experienced in personal injury, catastrophic injury, and fatality cases. 

Areas of Expertise: