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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.

Showing 145–162 of 3,373 experts

Condominiums

Christopher R. Lanni

CPP, CMCA, AMS

Hudson, Massachusetts39 years+ yrs★ 9.0

Christopher R. Lanni CPP, CMCA, AMS is a security and risk management expert specializing in premise liability and residential security assessments. With a career spanning security consulting, residential risk advising, and security technology implementation, he brings a strategic approach to evaluating security measures and risk mitigation strategies. His work centers on investigating security breaches, assessing risk management protocols, and evaluating whether security technologies meet industry standards. Mr. Lanni has been retained in numerous expert witness and consulting engagements across the United States, involving residential communities, commercial properties, and educational facilities. His Bachelor of Science in Criminal Justice with a Concentration in Private Security, along with certifications as a Certified Protection Professional, Certified Manager of Community Associations, and Association Management Specialist, 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 risk assessment.

TechnologyResidentialApartments+8
Speech-Language Pathology

Karen M. Sheffler

Board Certified Specialist in Swallowing and Swallowing Disorders

Boston, MA12 years+ yrs★ 9.0

Karen M. Sheffler, MS, CCC-SLP, BCS-S is a swallowing and swallowing disorders expert specializing in medical speech-language pathology litigation. With a career encompassing diverse roles in acute care settings and educational initiatives, she brings a multidisciplinary perspective to her litigation work. Her work centers on investigating dysphagia-related incidents, assessing compliance with swallowing safety protocols, and evaluating whether standard of care was met in cases involving swallowing disorders. Ms. Sheffler has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to dysphagia in medical speech-language pathology. Her MS in Communicative Disorders, along with her Board Certified Specialist in Swallowing and Swallowing Disorders and ASHA Certificate of Clinical Competence, 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 swallowing disorders and related safety issues.

GeriatricsSwallowing DisordersDysphagia
Construction

Kiwesa King

Construction Management Consultant and Expert Witness

New York, NY29 years+ yrs★ 9.0

Kiwesa King, Licensed Professional Engineer, Certified Construction Manager, Certified Construction Management Trainer, Certified Design-Build Professional, Project Management Professional is a construction management expert specializing in construction-related disputes and litigation. With a career encompassing construction management, construction administration, and fire protection systems, she brings a comprehensive framework to her litigation work. Her work centers on investigating construction defects, assessing construction means and methods, and evaluating whether construction best practices were followed. Ms. King has been retained in numerous expert witness and consulting engagements across New York City, involving construction defects, property damage, and premises liability cases. Her Master of Science in Mechanical Engineering, along with certifications such as Certified Construction Manager and Project Management Professional, 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 construction management and administration.

Construction Defects
Healthcare Data

Michael F. Arrigo

Managing Partner

Newport Beach, CaliforniaOver 30 years+ yrs★ 9.0

Michael F. Arrigo is a healthcare data and regulatory compliance expert specializing in electronic health records, HIPAA privacy, and Medicare fraud litigation. With a career encompassing healthcare data management, regulatory frameworks, and economic consulting, he brings a multifaceted perspective to his litigation work. His work centers on investigating electronic health record compliance, assessing HIPAA privacy adherence, and evaluating whether Medicare billing practices align with regulatory standards. Mr. Arrigo has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to healthcare data, regulatory compliance, and medical billing fraud. His Bachelor of Science in Business Administration from The University of Southern California, along with certifications in Clinical Bioethics and Risk Management, Biomedical Informatics, and HIPAA Privacy and Security Rules, 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 electronic health records and regulatory compliance.

Regulatory ComplianceEconomic ConsultingMedical Billing+1
Slip Trip & Fall

John T. Whitty, Jr.

Licensed Professional Civil Engineer

Manakin Sabot, VA30+ years+ yrs★ 9.0

John T. Whitty, Jr., P.E. is a fall protection and structural engineering expert specializing in litigation involving fall protection systems and structural analysis. With a career spanning structural design, fall protection systems, and safety engineering, he brings a comprehensive framework to analyzing compliance with industry standards and safety regulations. His work centers on investigating root causes of falls, assessing compliance with OSHA and ANSI standards, and evaluating whether structural designs meet safety requirements. Mr. Whitty has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to falls from height, structural failures, and safety compliance in commercial and industrial settings. His B.S. in Civil Engineering from Virginia Military Institute, along with his status as a Licensed Professional Engineer in multiple states, 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 fall protection systems and structural integrity.

SafetyStructural analysis and designFall protection systems+3
Electrical Engineering

Brian J. Brackensick

Electrical & Corrosion Engineer

Austin, TX22 years+ yrs★ 9.0

Brian J. Brackensick, M.S., P.E. is an Electrical & Corrosion Engineering expert specializing in electrical forensic consulting and failure analysis. With a career encompassing electrical design, code compliance inspections, and construction methods, he brings a multidisciplinary perspective to litigation work. His work centers on investigating electrical failures, assessing code compliance, and evaluating whether construction methods meet industry standards. Mr. Brackensick has been retained in numerous expert witness and consulting engagements across Texas and surrounding areas, involving electrical fires, appliance failures, and industrial site assessments. His Master of Science in Electrical Engineering, along with certifications such as Certified Fire and Explosion Investigator (CFEI) and Certified Cathodic Protection Technologist (CP3), 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 electrical systems and corrosion issues.

FireCorrosion Engineering
1983 Litigation

David T. Sweeney

Police Expert Witness & Consultant

Seattle, WA34 years+ yrs★ 9.0

David T. Sweeney is a police procedures expert specializing in use of force, pursuits, and police training litigation. With a career encompassing diverse roles in law enforcement, he brings a comprehensive understanding of police operations and policy development to his litigation work. His work centers on investigating use of force incidents, assessing police pursuit protocols, and evaluating whether training standards were met. Mr. Sweeney has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to law enforcement practices, police misconduct, and civil rights violations. His Master of Public Policy from Oregon State University, along with his Certificate from the School of Police Staff and Command at Northwestern 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 standard of care in disputes involving police procedures and practices.

Criminal LawCrowd ControlDeadly/Excessive Force+20
Police Procedures

Aaron T. Olson, M.Ed.

Police and Human Resources Expert Witness

Beavercreek, OR47 years+ yrs★ 9.0

Aaron T. Olson, M.Ed. is a police and human resources expert specializing in police procedures and human resource investigations. With a career encompassing law enforcement leadership, human resources investigations, and academic instruction, he brings a multifaceted perspective to his litigation work. His work centers on investigating police conduct, assessing human resource practices, and evaluating whether organizational policies align with legal standards. Mr. Olson has been retained in numerous expert witness and consulting engagements across the Pacific Northwest, involving police misconduct, wrongful death, and employment discrimination cases. His Master of Education in Adult Education, along with his Oregon private investigator license, 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 police use of force and human resource compliance.

Police PoliciesPolice InvestigationsPolice Interviews+27
OSHA and Safety

Franklin A. “Chip” Darius Jr.

Safety and Health/OSHA Compliance Consultant

Cromwell, CT35 years+ yrs★ 9.0

Franklin A. “Chip” Darius Jr., MA, OHST, CSHO, CUSP, CIT, HSO is a Safety and Health/OSHA Compliance expert specializing in occupational safety and health regulations, policies, standards, and compliance. With a career encompassing safety consulting, OSHA compliance, and extensive training experience, he brings a multifaceted perspective to litigation work. His work centers on investigating occupational incidents, assessing compliance with safety standards, and evaluating whether safety training was adequate. Mr. Darius has been retained in numerous expert witness and consulting engagements across over 20 states, involving cases of fatalities, catastrophic injuries, and personal injuries. His M.A. in Communication Sciences, along with certifications such as Certified Occupational Hygiene & Safety Technician and Certified Safety & Health Official, 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 OSHA and ANSI standards, multi-employer worksites, and contractor safety responsibilities.

Slips, trips, falls, and floor/stair/walking surface safetyFall protection, fall prevention, personal fall arrest systemsScaffolds, platforms, ladders, aerial boom lifts, scissor lifts+10
Hotel & Restaurant

Gary L Deel

PhD, JD

Windermere, FL20+ years+ yrs★ 9.0

Gary L. Deel, PhD, JD, MS, CLSD, CHSP, CHSE, CHE, CHIA, SHRM-CP, CFE, APP is a hospitality and tourism management expert specializing in legal and operational disputes within the hospitality industry. With a diverse background in hotel operations, legal practice, and academic leadership, he brings a multifaceted perspective to his litigation work. His work centers on investigating compliance with industry standards, assessing operational practices, and evaluating whether negligence occurred in hospitality settings. Mr. Deel has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving cases in hotels, resorts, casinos, restaurants, and other hospitality sectors. His Doctorate of Philosophy in Hospitality Administration, along with certifications such as Certified Fraud Examiner and Certified Hotel Industry Analyst, 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 hospitality management and operations.

Travel & TourismHospitality ManagementLaw+2
Construction Defects

Peter J. Glismann

Forensic Engineer, Special Inspector

New York, NY36 years+ yrs★ 9.0

Peter J. Glismann, MS, PE is a forensic engineering expert specializing in construction defects and safety engineering. With a career encompassing design, safety, code enforcement, and inspection of both residential and commercial properties, he brings a multifaceted perspective to litigation work. His work centers on investigating structural failures, assessing code compliance, and evaluating whether construction defects have occurred. Mr. Glismann has been retained in numerous expert witness and consulting engagements across multiple states, involving cases related to construction defects, weather-related damage, and structural failures. His Master of Science degree in Systems Analysis and Management, along with certifications such as Certified Safety Professional and Certified Welding 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 structural integrity and compliance issues.

Products LiabilityForensic EngineeringSafety Engineering+2
Safety

Andy Nieto

Occupational Safety Consultant

St. Charles, IL40 years+ yrs★ 9.0

Andy Nieto, CSP, CHST is an occupational safety consultant specializing in safety litigation matters within the construction and general industry sectors. With a career encompassing diverse roles in safety management, he brings a comprehensive understanding of industry standards and regulatory compliance to his litigation work. His work centers on investigating workplace incidents, assessing safety compliance, and evaluating whether industry standards have been met. Mr. Nieto has been retained in numerous expert witness and consulting engagements across various jurisdictions, involving construction safety, industrial safety, and multi-employer work site cases. His Bachelor of Science in Occupational Safety and Health, along with certifications such as Certified Safety Professional (CSP) and Construction Health and Safety Technician (CHST), 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 OSHA regulations and safety liability.

OSHA
Aviation & Aerospace

Helen Zienkievicz

Airline Cabin & Ground Safety Expert & Consultant

Moore, OK48 years+ yrs★ 9.0

Helen Zienkievicz, Board Certified Adult Nurse Practitioner, Advanced Certified Hospice and Palliative Nurse, Certified Federal Motor Carrier Safety Administration Medical Examiner is an airline cabin and ground safety expert specializing in aviation safety litigation. With a career spanning roles in health, safety, and security management, she brings a comprehensive understanding of regulatory compliance and emergency response to her litigation work. Her work centers on investigating aviation incidents, assessing safety management systems, and evaluating whether industry standards and practices were adhered to. Ms. Zienkievicz has been retained in numerous expert witness and consulting engagements across the United States, involving aviation safety, regulatory compliance, and emergency response cases. Her Master of Science in Nursing, along with her board certifications, 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 aviation safety and regulatory compliance.

Safety
Trip and Falls

David Louis Swartz, FAIA IIDA NCARB LEED AP

FAIA IIDA NCARB LEED AP

Los Angeles, California42 years+ yrs★ 9.0

David Louis Swartz, FAIA IIDA NCARB LEED AP is a construction defects and slip trip & fall expert specializing in building codes and architectural design litigation. With a career spanning architectural design, construction administration, and historic renovation, he brings a nuanced understanding of compliance and safety standards to his litigation work. His work centers on investigating construction defects, assessing ADA compliance, and evaluating whether building codes have been adhered to. Mr. Swartz has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to construction defects, ADA compliance, and architectural design. His Master of Architecture from the University of Southern California, along with his LEED Accredited Professional 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 standard of care in disputes involving architectural design and construction compliance.

CodesArchitectureInterior Design+20
Emergency Preparedness

Richard J. Larkin

Emergency Services & Safety Expertise

Bloomington, MN35 years+ yrs★ 9.0

Richard J. Larkin, CEM®, MA is an emergency services and safety expert specializing in emergency planning, preparedness, and response. With a career encompassing municipal, state, and international emergency management, he brings a strategic and operational perspective to litigation work. His work centers on investigating emergency response protocols, assessing crisis leadership effectiveness, and evaluating whether negligence in emergency preparedness occurred. Mr. Larkin has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving municipal emergency management, crisis leadership, and public safety protocols. His Master of Arts in Public Safety Administration, along with certifications such as Certified Emergency Manager® (CEM) and ISO 22301 Lead Auditor, 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 emergency management and response protocols.

SafetyEmergency ManagementResponse Protocols+20
Construction Defects

James Platt

Licensed General Contractor and Consultant

West Richland, WA54 years+ yrs★ 9.0

James Platt, Licensed General Contractor and Consultant is a construction defects expert specializing in construction consulting and litigation support. With a career encompassing luxury home design, real estate investment, and construction management, he brings a comprehensive perspective to his litigation work. His work centers on investigating construction defects, assessing compliance with building codes, and evaluating contract adherence. Mr. Platt has been retained in numerous expert witness and consulting engagements across the Pacific Northwest, involving residential and commercial construction disputes. His education in Business Law from the College of Eastern Utah, along with his licenses as a general contractor and master journeyman plumber, 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 construction defects and contract compliance.

PlumbingConstruction ConsultingLuxury Home Design+1
Chemical Engineering

Chris K. Haas

Corporate Scientist/Consultant

Saint Paul, MN22 years+ yrs★ 9.0

Chris K. Haas, PhD is a plastics, materials, and testing expert specializing in intellectual property support and failure mode analysis. With a career encompassing polymer processing, security document features, and materials engineering, he brings a multifaceted perspective to litigation work. His work centers on investigating materials failure, assessing patent infringement, and evaluating security document integrity. Mr. Haas has been retained in numerous expert witness and consulting engagements across the United States, involving product liability and patent infringement cases. His Doctor of Philosophy (PhD) in Chemical Engineering, along with certifications such as Six Sigma Green Belt and Advanced Leadership Development Program, 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 polymer and adhesive systems.

ManufacturingPolymer Processing, Extrusion, & CoatingIntellectual Property Generation & Maintenance+6
Accident Reconstruction

Jose J. Granda, Ph.D, P.E.

Professor of Mechanical Engineering

Davis, California41 years+ yrs★ 9.0

Jose J. Granda, Ph.D, P.E. is an accident reconstruction expert specializing in forensic engineering and accident reconstruction using computer simulations. With a career encompassing vehicle dynamics, computer modeling, and mechatronics, he brings a multidisciplinary approach to litigation work. His work centers on investigating vehicle dynamics, assessing accident biomechanics, and evaluating failure analysis. Mr. Granda has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to vehicle dynamics, workplace accidents, and mechanical engineering. His Ph.D. in Mechanical Engineering, along with EDR Certification, Tech 1, Tech II, and EDR Analysis 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 reconstruction and vehicle dynamics.

EngineeringVehicle Dynamics and DesignComputer Modeling and Simulation+8
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