Find the Right Expert for Every Case

Consulting Arborist, Ecologist & Urban Forester

John Hans Bornsworth, Board Certified Master Arborist, Registered Consulting Arborist, Tree and Plant Appraisal Qualification is a consulting arborist and ecological forensics expert specializing in tree valuation, tree risk assessment, and environmental litigation support. With a career encompassing urban forestry management, ecological forensics, and arboriculture, he brings a multidisciplinary approach to complex environmental and arboricultural disputes. His work centers on investigating tree failures, assessing ecological impacts, and evaluating whether industry standards were met in cases involving tree valuation, environmental mitigation, and construction impacts. Mr. Bornsworth has been retained in numerous expert witness and consulting engagements across Washington, Oregon, Colorado, and Michigan, involving cases of tree failure, environmental mitigation, and urban forestry policy. His Board Certified Master Arborist designation from the International Society of Arboriculture, along with his Registered Consulting Arborist and Tree and Plant Appraisal Qualification certifications, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation and standard of care in disputes involving tree risk, ecological impacts, and arboricultural practices.

Mechanical & Metallurgical Engineer

Bradley N. Plank, P.E. is a Mechanical & Metallurgical Engineering expert specializing in forensic engineering and failure analysis. With a career spanning mechanical engineering, metallurgical processes, and product safety management, he brings a multifaceted perspective to litigation work. His work centers on investigating mechanical failures, assessing metallurgical integrity, and evaluating whether industry standards were met in complex engineering disputes. Mr. Plank has been retained in numerous expert witness and consulting engagements across the United States, involving personal injury, property damage, and product liability cases in industries such as oilfield equipment, HVAC systems, and heavy machinery. His Bachelor of Science in Metallurgical Engineering from Ohio State University, along with his Professional Engineer license and Certified Fire and Explosion Investigator certification, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving mechanical and metallurgical failures.

MD, MS, PhD

LAWRENCE S. MAYER, MD, MS, PhD is an epidemiology and biostatistics expert specializing in the application of statistical methods in public health and clinical settings. With a career encompassing diverse roles in academia, research, and consultancy, he brings a multidisciplinary perspective to litigation work. His work centers on analyzing clinical trials data, evaluating epidemiological models, and assessing the health effects of preventive interventions. Dr. Mayer has been retained in numerous expert witness and consulting engagements across the United States, involving cases in public health policy, environmental epidemiology, and clinical medicine. His PhD in Mathematics (Statistics and Biostatistics), along with his MB (British MD) in Medicine, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving epidemiological studies and statistical evaluations.

Forensic Animator/Technical Animator/Legal Graphic Designer/Medical Illustrator

David Yarr is a forensic animation and visualization expert specializing in accident reconstruction and legal graphics. With a career spanning forensic animations, accident reconstruction visualization, and medical illustrations, he brings a multidisciplinary approach to litigation work. His work centers on producing demonstrative evidence, conducting video analysis, and integrating EDR/black box data. Mr. Yarr has been retained in numerous expert witness and consulting engagements across the United States, involving personal injury cases, vehicle collisions, and medical device litigations. His coursework in Digital Animation, along with certifications such as LEVA Level 1, Forensic Video Analysis & the Law, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving accident scenarios and forensic visualizations.

Principal Engineer

Wayne J. Seiler, Ph.D., P.E. is a pavement engineering expert specializing in forensic analysis and pavement management systems. With a career spanning airport, highway, and port pavement engineering, he brings a comprehensive understanding of pavement evaluation and rehabilitation design to litigation work. His work centers on investigating pavement failures, assessing nondestructive deflection testing results, and evaluating whether rehabilitation designs meet industry standards. Dr. Seiler has been retained in numerous expert witness and consulting engagements across the United States, involving airport and port pavement projects. His Ph.D. in Civil Engineering, along with his Professional Engineer licenses in MN, IL, NC, FL, VA, MD, and MS, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving pavement failures and management systems.

Crash Reconstructionist-Forensic Mapper, CDR Analyst-Technician

Daniel Holmes, A.C.T.A.R. #2455 is a crash reconstruction expert specializing in forensic mapping and CDR analysis. With a career spanning accident investigation, forensic mapping, and crash data retrieval, he brings a robust analytical framework to litigation work. His work centers on investigating crash dynamics, assessing vehicle and scene data, and evaluating whether industry standards were met. Mr. Holmes has been retained in numerous expert witness and consulting engagements across Minnesota, involving cases related to vehicle collisions, pedestrian accidents, and commercial vehicle incidents. His Bachelor Degree of Science in Law Enforcement, along with certifications such as Full Accreditation - Traffic Accident Reconstructionist and MN Licensed Peace Officer, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving crash reconstruction and forensic mapping.

Biomedical Systems Expert - 25+ Yrs, 10 Patents

Eric A. Bharucha, M.Sc., B.Eng., B.Sc., P.E. is a biomedical systems expert specializing in medical device development and regulatory compliance. With a multidisciplinary career encompassing electrical engineering, microbiology, and systems integration, he brings a comprehensive framework to his litigation work. His work centers on investigating electronic system failures, assessing regulatory compliance pathways, and evaluating whether design deviations impact device safety. Mr. Bharucha has been retained in numerous expert witness and consulting engagements worldwide, involving medical devices, aerospace systems, and advanced sensor technologies. His M.Sc. in Electrical Engineering, along with his Professional Engineer (P.E.) designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving electronic system failures and regulatory compliance.

Tire, Fire & Automotive Consultant

Thomas J. Lepper, CFEI is an automotive failure analysis expert specializing in forensic investigation and fire cause and origin. With a career spanning tire and brake analysis, mechanical defect evaluation, and vehicle theft analysis, he brings a comprehensive forensic perspective to litigation work. His work centers on investigating tire separations and failures, assessing fire cause and origin, and evaluating mechanical defects. Mr. Lepper has been retained in numerous expert witness and consulting engagements across California, involving automotive failures, tire and brake analysis, and fire cause investigations. His Bachelor of Science in Education from Southern Illinois University, along with his Certified Fire and Explosion Investigator certification, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving automotive component failures and fire origins.

Criminalistics Subject Matter Expert

Deborah Stonebarger, BS is a Criminalistics Subject Matter Expert specializing in forensic science and crime scene investigation. With a career encompassing forensic firearms analysis, DNA and biological fluids, and controlled substances, she brings a multidisciplinary approach to her litigation work. Her work centers on investigating crime scenes, assessing evidence integrity, and evaluating whether forensic procedures adhere to industry standards. Ms. Stonebarger has been retained in numerous expert witness and consulting engagements across California and Arizona, involving criminal defense cases, forensic laboratory audits, and evidence collection disputes. Her Bachelor of Science in Biological Sciences with a minor in Chemistry, along with her certification in Comprehensive Criminalistics, Diplomate status from the American Board of Criminalistics, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic evidence and crime scene investigations.

Licensed Professional Engineer | Construction Expert Witness | Principal Expert, GCM Group LLC

Walter McBrier, P.E. is a construction expert witness specializing in delay analysis, cost causation, change order disputes, and schedule impact assessment. With a career spanning roles as a contractor, owner's representative, and project controls lead, he brings a technically rigorous framework to litigation work. His work centers on investigating construction delays, assessing cost responsibilities, and evaluating whether contract obligations have been met. Mr. McBrier has been retained in numerous expert witness and consulting engagements across the United States, involving commercial, industrial, heavy civil, and utility infrastructure sectors. His Bachelor of Science in Mechanical Engineering, along with his Licensed Professional Engineer (Civil) certification in Idaho, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving construction delay and cost issues.

Chartered Engineer, Collision Investigator, Infotainment Analyst

Philip Hoyes BEng (Hons) CEng MIMechE MCSFS is a forensic vehicle examination expert specializing in collision investigation and mechanical failure analysis. With a career encompassing forensic collision investigation, mechanical failure analysis, and occupant kinematics, he brings a scientifically rigorous approach to his litigation work. His work centers on investigating collisions, assessing mechanical failures, and evaluating occupant kinematics to provide precise, evidence-based insights. Mr. Hoyes has been retained in numerous expert witness and consulting engagements across the UK and Ireland, involving vehicle collisions, mechanical failures, and fire investigations. His BEng (Hons) in Automotive Engineering, along with certifications such as Bosch CDR Technician and Certified Vehicle System Forensic Examiner, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic vehicle data and accident reconstruction.

Chartered Engineer & Concrete Technologist

PROFESSOR PETER ROBERY FREng CEng FICE FCS FICT is a concrete technology and forensic engineering expert specializing in failure investigation and construction defects. With a career spanning concrete construction technology, inspection, testing, maintenance, and repair, he brings a comprehensive forensic framework to litigation work. His work centers on investigating structural failures, assessing compliance with concrete specifications, and evaluating whether construction practices meet industry standards. Mr. Robery has been retained in numerous expert witness and consulting engagements internationally, involving cases such as airport concrete structures, warehouse flooring, and water supply projects. His BSc (Hons) in Civil Engineering and PhD in Concrete Technology, along with his Chartered Engineer designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving concrete performance and construction failures.

Senior Software & Hardware Engineer, Computer Scientist, Expert Witness

Bert Schiettecatte, MSc/CS, MA/MST is an intellectual property litigation expert specializing in software and hardware engineering disputes. With a career encompassing digital signal processing, algorithmic trading, and embedded systems, he brings a multifaceted technical perspective to his litigation work. His work centers on investigating software source code integrity, assessing hardware design compliance, and evaluating whether trade secret misappropriation has occurred. Mr. Schiettecatte has been retained in numerous expert witness and consulting engagements across the United States, involving patent litigation, trade secret misappropriation, and breach-of-contract cases. His Master of Science in Computer Science from Vrije Universiteit Brussel, along with his Master of Arts in Music, Science and Technology from Stanford University, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving complex software and hardware systems.

Orthopedic Surgeon – Board Certified

Clive M. Segil, M.D., F.R.C.S., F.A.C.S. is an orthopedic surgery expert specializing in forensic orthopedics and medical testimony. With a career spanning orthopedic surgery, spine surgery, and joint replacement, he brings a comprehensive perspective to litigation work involving complex musculoskeletal disorders. His work centers on investigating orthopedic injuries, assessing surgical outcomes, and evaluating whether medical standards of care have been met. Mr. Segil has been retained in numerous expert witness and consulting engagements across California and Nevada, involving workers' compensation cases and spine surgery disputes. His M.B., B.Ch. in Medicine, along with certifications such as F.A.C.S. and F.I.C.S., reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving orthopedic injuries and surgical interventions.

Latent Print Examiner and Forensic Expert Consultant

Robert J. May is a forensic analysis expert specializing in latent print examination and crime scene investigation. With a career spanning forensic science, law enforcement, and laboratory management, he brings a multifaceted perspective to litigation work. His work centers on investigating forensic methodologies, assessing evidence processing techniques, and evaluating whether forensic standards have been met. Mr. May has been retained in numerous expert witness and consulting engagements across the United States, involving criminal and civil matters related to latent print examination and forensic photography. His Bachelor of Science in Biology, along with his certification as an ANSI National Accreditation Board (ANAB) accreditation assessor for forensic testing laboratories under ISO 17025:2017, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving forensic evidence and laboratory practices.

Certified Flooring Inspector & Instructor

William (Will) Stoner, Certified Flooring Inspector & Instructor is a flooring inspection and forensic analysis expert specializing in slip, trip, and fall cases, as well as construction defects. With a career encompassing roles in installation, retail, and inspection, he brings a multifaceted perspective to litigation work, informed by his extensive experience in forensic flooring analysis and industry standards compliance. His work centers on investigating installation failures, assessing product defects, and evaluating whether maintenance protocols meet safety standards. Mr. Stoner has been retained in numerous expert witness and consulting engagements across the United States, involving residential and commercial flooring disputes, manufacturing defects, and safety compliance issues. His Bachelor's Degree in Marketing, along with certifications such as NFSI Walkway Auditor Safety Specialist and NWFA-CP Certified Wood Flooring Inspector, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving flooring failures and safety evaluations.

Court-Qualified Digital Forensics Expert, Cybercrime Investigator, and Senior Investigative Consultant

JARED K. STERN is a digital forensics expert specializing in cybercrime investigations and cryptocurrency fraud tracing. With a career spanning digital forensics, cyber investigations, and expert testimony, he brings a comprehensive forensic methodology to complex litigation matters. His work centers on investigating cryptocurrency-enabled fraud schemes, assessing digital asset tracing, and evaluating whether ransomware incidents align with forensic evidence. Mr. Stern has been retained in numerous expert witness and consulting engagements across Maryland, Virginia, and Washington, DC, involving civil, criminal, and federal proceedings. His Certified Computer Forensic Examiner (CCFE) and Certified Mobile Forensics Examiner (CMFE) credentials reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving digital forensics and cybercrime.

Mechanical and Metallurgical Engineering Consultant

Jamie L. Petty-Galis, M. S., P.E. is a forensic metallurgical and mechanical engineering expert specializing in material failure analysis and structural integrity assessment. With a career encompassing diverse material applications in industries such as aviation, biomedical, and oil and gas, she brings a multidisciplinary approach to her litigation work. Her work centers on investigating material failures, assessing structural integrity, and evaluating the root causes of system failures. Ms. Petty-Galis has been retained in numerous expert witness and consulting engagements across the United States, involving cases in aviation, oil and gas, and transportation industries. Her M.S. in Materials Science from The University of Texas at Arlington, along with her Texas Professional Engineer license, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving complex material systems.