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Expert Witness Directory

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Browse our verified directory of expert witnesses spanning medicine, engineering, finance, and dozens of specialized fields.

MedicalEngineeringFinanceForensicPsychologyConstructionAccountingTechnology

Showing 559–576 of 1,756 experts

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Premises Liability
CT

Charles T. Ahmad

Founding Partner

Mableton, GA★ 8.4

Charles T. Ahmad, CPP is a security risk management expert specializing in premises liability for negligent security. With a career spanning security management, behavioral threat assessment, and tactical operations, he brings a strategic perspective to litigation work. His work centers on investigating security negligence, assessing threat management protocols, and evaluating whether security measures meet industry standards. Mr. Ahmad has been retained in numerous expert witness and consulting engagements across the United States, involving apartment complex violent crime, gas station and convenience store violent crime, and security negligence cases. His Bachelor of Science in Criminal Justice Sciences, along with certifications such as Certified Protection Professional/Board Certified in Security Management and Force Science 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 responsibility in disputes involving security risk management and use of force.

SecuritySecurity Risk ManagementThreat Assessment+4
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Biomedical Engineering
AL

Alison Lesley Marsden, Ph.D.

Professor of Cardiovascular Diseases

Stanford, CA16 years+ yrs★ 8.4

Alison Lesley Marsden, Ph.D. is a Biomedical Engineering expert specializing in cardiovascular modeling and computational fluid dynamics in litigation contexts. With a career spanning bioengineering, digital health, and pediatric cardiology, she brings a multidisciplinary framework to her litigation work. Her work centers on investigating cardiovascular device efficacy, assessing computational modeling accuracy, and evaluating whether surgical interventions meet industry standards. Ms. Marsden has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to cardiovascular disease, medical devices, and pediatric cardiology. Her Ph.D. in Mechanical Engineering, along with her Fellow status in the Biomedical Engineering Society and American Institute for Medical and Biological Engineering, 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 cardiovascular modeling and medical devices.

Medical DevicesCardiovascular ModelingBioengineering+1
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Security and Premises Liability
JS

Joshua Shelton

Certified Physical Security and Threat Assessment Expert

Atlanta, Georgia20+ years+ yrs★ 8.4

Joshua Shelton, Certified Protection Professional, Certified Threat Manager is a certified physical security and threat assessment expert specializing in security and premises liability litigation. With a career encompassing law enforcement and corporate security, he brings a multifaceted perspective to his litigation work. His work centers on conducting vulnerability assessments, facilitating behavioral threat assessment training, and evaluating the adequacy of security measures in various environments. Mr. Shelton has been retained in numerous expert witness and consulting engagements across Georgia and Federal courts, involving cases of inadequate security, workplace violence, and premises liability in industries such as gas stations, apartments, and parking garages. His Master of Science in Criminal Justice from the University of the Cumberlands, along with certifications as a Certified Protection Professional and Certified Threat Manager, 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 security management and threat assessment.

Security ManagementThreat Assessment
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Accident Reconstruction
LW

Larry W. Busby

Owner & Manager

Austin, TexasOver 28 years+ yrs★ 8.4

Larry W. Busby is an accident reconstruction and land surveying expert specializing in accident investigation and reconstruction. With a career spanning private investigation, land surveying, and accident reconstruction, he brings a multidisciplinary perspective to litigation work. His work centers on investigating accident causation, assessing scene mapping accuracy, and evaluating whether industry standards were met. Mr. Busby has been retained in numerous expert witness and consulting engagements across Texas, New Mexico, Colorado, and Oklahoma, involving automotive, pedestrian, commercial vehicle, and land surveying cases. His Bachelor’s Degree in Criminal Justice, along with certifications such as the Accreditation Commission for Accident Reconstruction (ACTAR) and Certified Federal Surveyor (CFedS), 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 reconstruction and land surveying.

Accident InvestigationLand Surveying
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Slip Trip & Fall
W(

William (Will) Stoner

Certified Flooring Inspector & Instructor

Toney, AL45 years+ yrs★ 8.4

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.

Construction DefectsForensic flooring analysisResidential & commercial inspections+7
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Podiatry
GK

Gennady Kolodenker

DPM, ABPM

Irvine, CA★ 8.4

Gennady Kolodenker, DPM, ABPM is a podiatry and sports medicine expert specializing in adult and pediatric sports medicine, surgery, and complex foot and ankle trauma management. With a career encompassing trauma, limb preservation, diabetic wounds, and reconstructive surgery, he brings a multifaceted perspective to litigation work. His work centers on investigating trauma-related injuries, assessing surgical outcomes, and evaluating whether standard of care was met in podiatric cases. Dr. Kolodenker has been retained in numerous expert witness and consulting engagements across California, involving sports medicine, trauma, and podiatric surgery cases. His Doctorate of Podiatric Medicine from Rosalind Franklin University of Medicine and Science, along with his Board Certification from the American Board of Podiatric 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 podiatric injuries and surgical interventions.

Wound CareSports MedicineSurgery+2
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Accident Reconstruction
DY

David Yarr

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

Tustin, CA17 years+ yrs★ 8.4

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.

VideoForensic Animations
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Architecture
GK

Gary K. Dempster

FAIA, NCARB, LEED AP, CRRP

South Pasadena, CA42 years+ yrs★ 8.4

Gary K. Dempster, FAIA, NCARB, LEED AP, CRRP is an architecture and construction expert specializing in professional standard of care and construction documents analysis. With a career spanning project management, technical services, and architectural mediation, he brings a comprehensive framework for evaluating compliance with industry standards in complex construction disputes. His work centers on investigating professional standard of care breaches, assessing construction document integrity, and evaluating whether architectural coordination meets regulatory requirements. Mr. Dempster has been retained in numerous expert witness and consulting engagements across the United States, involving retail, hospitality, and historic preservation projects. His Bachelor of Science in Architecture from the University of Southern California, along with certifications such as NCARB, LEED AP, and CRRP, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving architectural design and construction administration.

ConstructionProfessional Standard of CareConstruction Documents Analysis+8
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Security
ML

Michelle L. Chace

Security/Premise Liability Expert

Daytona Beach, Florida20+ years+ yrs★ 8.4

Michelle L. Chace, MSSM is a Security and Premises Liability expert specializing in negligent security analysis and premises liability litigation. With a career encompassing physical security, threat assessment, and risk management, she brings a comprehensive framework for evaluating security failures and applying industry standards to litigation contexts. Her work centers on investigating alleged security deficiencies, assessing compliance with security protocols, and evaluating whether industry standards were met. Ms. Chace has been retained in numerous expert witness and consulting engagements across the United States, involving premises liability and negligent security cases in residential, commercial, and critical infrastructure sectors. Her Master of Science in Security Management, along with certifications as a Florida Crime Prevention Through Environmental Design (CPTED) Practitioner and advanced training from Sandia National Laboratories, FEMA, and the U.S. Department of Homeland Security, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving security management and premises liability.

Premises LiabilitySecurity and Premises LiabilitySecurity Negligence+14
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Apartment
CM

Charles McGilvary Johnson

Founder & Chief Executive Officer

Jasper, GA30 years+ yrs★ 8.4

Charles McGilvary Johnson is a security management and premises liability expert specializing in negligent security and premises liability litigation. With a career encompassing security assessments, physical security, and access control systems, he brings a comprehensive understanding of security protocols and risk mitigation strategies to his litigation work. His work centers on investigating security breaches, assessing compliance with industry standards, and evaluating whether security measures were adequate. Mr. Johnson has been retained in numerous expert witness and consulting engagements across Florida and Georgia, involving cases related to apartment and condo security, video surveillance, and access control systems. His Physical Security Professional certification from ASIS International and Florida CPTED Practitioner certification from the Florida Department of Law Enforcement 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 security management and premises liability.

CondoSecurity ManagementVideo Surveillance+15
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Real Estate
CF

Camille Ford

Mortgage Expert Witness

Atlanta, Georgia34 years+ yrs★ 8.4

Camille Ford, NMLS license#1148009, Georgia license #40988 is a Mortgage Expert Witness specializing in mortgage and real estate litigation. With a career spanning origination, operations, compliance, and training, she brings a comprehensive framework to her litigation work. Her work centers on investigating mortgage fraud, assessing broker fiduciary duties, and evaluating compliance with lending regulations. Ms. Ford has been retained in numerous expert witness and consulting engagements across the Southeast, involving wholesale mortgage broker wire fraud and commercial real estate breach of contract cases. Her Associate Degree in Business, along with her NMLS and Georgia licenses, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving mortgage lending and compliance.

BankingMortgage lendingCompliance+3
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Fingerprints
FR

Frank R. Vanecek

Police Practices Expert

Oak Harbor, WA35 years+ yrs★ 8.4

Frank R. Vanecek, Police Practices Expert is a police practices expert specializing in wrongful conviction and use of force litigation. With a career spanning law enforcement at city, county, state, tribal, and federal levels, he brings a multifaceted perspective to his litigation work. His work centers on investigating police conduct, assessing compliance with law enforcement standards, and evaluating whether procedural violations occurred. Mr. Vanecek has been retained in numerous expert witness and consulting engagements nationwide, involving cases of false conviction, wrongful detention, and excessive force. His Bachelor of Arts in Management with a Criminal Justice Minor, along with certifications as a California and Colorado certified Peace Officer (POST), 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 police practices and procedures.

HomicideGangsNarcotics+19
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Structural Engineering
VM

Vanessa M. Malone

Principal Structural Engineer

Sanford, FL15 years+ yrs★ 8.4

Vanessa M. Malone, P.E. is a structural engineering expert specializing in forensic investigations and expert witness work. With a career spanning aerospace, defense, and nuclear industries, she brings a multidisciplinary perspective to litigation work. Her work centers on investigating structural collapses, assessing construction defects, and evaluating hurricane and wind damage. Ms. Malone has been retained in numerous expert witness and consulting engagements across the United States, involving structural collapses, construction defects, and hurricane damage cases. Her M.Sc. in Civil Engineering: Computational Mechanics, along with P.E. Licenses in FL, NY, LA, GA, MO, TX, 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 structural failures and construction defects.

Construction DefectsStructural CollapsesHurricane Damage+1
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Epidemiology
LS

Lawrence S. Mayer

MD, MS, PhD

Laguna Beach, CA50 years+ yrs★ 8.4

Lawrence S. Mayer, MD, MS, PhD is an epidemiology and biostatistics expert specializing in the application of statistical methods in public health and clinical medicine. With a career spanning biostatistics, epidemiology, and public health policy, he brings a multidisciplinary perspective to litigation work. His work centers on investigating the health effects of preventive interventions, assessing statistical issues in evidence-based medicine, and evaluating the application of epidemiological models in clinical settings. Dr. Mayer has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to clinical trials, product liability, and environmental epidemiology. His PhD in Mathematics (Statistics and Biostatistics), along with his MB Certificate (British MD) and MS in Mathematics, 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.

BiostatisticsClinical TrialsModel Validation & Evaluation+22
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Accident Reconstruction
KJ

Kristopher J Seluga

Mechanical Engineering, Accident Reconstruction, Biomechanics and Safety Expert

Stratford, CT29 years+ yrs★ 8.4

Kristopher J Seluga, Licensed Professional Engineer is a mechanical engineering expert specializing in accident reconstruction, biomechanics, and safety. With a career encompassing dynamic testing, software development for accident simulations, and forensic engineering, he brings a multifaceted analytical perspective to litigation work. His work centers on investigating motor vehicle and machinery accidents, assessing product liability claims, and evaluating safety compliance in construction and industrial settings. Mr. Seluga has been retained in numerous expert witness and consulting engagements across Connecticut and New York, involving motor vehicle accidents, product liability, and premises liability cases. His M.S. in Mechanical Engineering from M.I.T., along with OSHA 10-hour Construction Safety and Health 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 accident dynamics and safety standards.

Products LiabilityBiomechanicsSafety
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Engineering
MS

Mark S. Wassom, P.E.

Senior Consultant

Lenexa, KS30 years+ yrs★ 8.4

Mark S. Wassom, P.E. is a fire protection engineering expert specializing in code consultation and fire investigation. With a career encompassing fire protection engineering, code consultation, and fire investigation, he brings a comprehensive understanding of fire safety systems and regulatory compliance to his litigation work. His work centers on investigating fire incidents, assessing code compliance, and evaluating whether fire protection systems meet industry standards. Mr. Wassom has been retained in numerous expert witness and consulting engagements across the United States, involving commercial, industrial, educational, and healthcare facilities. His B.S. in Architectural Engineering, along with certifications such as Certified Fire Investigator and Certified Fire Marshal, 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 fire protection and life safety systems.

FireFire protection engineeringCode consultation+1
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Litigation technical support
JL

Jamie L. Petty-Galis, M. S., P.E.

Mechanical and Metallurgical Engineering Consultant

Southlake, Texas★ 8.4

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.

Metallic material failure analysisComposite material failure analysisPlastic material failure analysis+9
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Physical Security Surveys
VV

Vince Vittatoe

Independent Security Consultant

McKinney, TX★ 8.4

Vince Vittatoe, CPP, CSC, CPTED is a security consulting expert specializing in premises liability and negligent security litigation. With a career spanning law enforcement, hospitality security management, and independent consulting, he brings a comprehensive understanding of security protocols and risk mitigation strategies to his litigation work. His work centers on investigating security breaches, assessing risk management practices, and evaluating whether security standards were upheld. Mr. Vittatoe has been retained in numerous expert witness and consulting engagements across North America, involving hospitality, corporate security, and public safety cases. His Bachelor of Business Administration in Accounting, along with certifications such as Certified Protection Professional and Certified Security Consultant, 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 security management and premises liability.

Threat and Crime AnalysisSecurity ManagementWorkplace Violence Planning+5
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