Expert Witness Directory

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Showing 811–828 of 1,756 experts

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Massage

JK

Jill K. Berkana

LMT, BCTMB

Longmont, CO35 years+ yrs★ 8.1

Jill K. Berkana, LMT, BCTMB is a massage therapy misconduct expert specializing in cases involving ethical violations and professional standards. With extensive experience in massage therapy education, ethics, and operational management, she brings a comprehensive framework to her litigation work. Her work centers on investigating misconduct allegations, assessing adherence to ethical standards, and evaluating whether industry standards of care have been met. Ms. Berkana has been retained in numerous expert witness and consulting engagements across the United States, involving cases of massage therapy misconduct and ethical breaches. Her Massage Therapy Certification from Boulder College of Massage Therapy, along with her Board Certified Massage Therapist designation and NCBTMB Approved Education Provider status, 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 massage therapy ethics and standards.

Business Operations

Information Technology

DB

Dr. Biplab Pal

Expert Witness

Baltimore, MD24+ years+ yrs★ 8.1

Dr. Biplab Pal, PhD is an Information Technology and Intellectual Property expert specializing in optical communications, semiconductors, and Industrial IoT disputes. With a career spanning technology consulting, engineering, and entrepreneurship, he brings a multidisciplinary perspective to complex litigation matters. His work centers on investigating patent validity and infringement, assessing claim construction and standards mapping, and evaluating source-code and protocol simulations. Dr. Pal has been retained in numerous expert witness and consulting engagements across the United States, involving semiconductor, telecommunications, and IoT security cases. His PhD in Electronics & Electrical Communication Engineering, along with his extensive patent portfolio, 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 responsibility in disputes involving advanced technology systems.

Intellectual PropertyOptical communicationsSemiconductors+1

Intellectual property

SA

Stephen A. Batzer, Ph.D., P.E.

President, Batzer Engineering, Inc.

Fife Lake, MI40 years+ yrs★ 8.1

Stephen A. Batzer, Ph.D., P.E. is a forensic engineering expert specializing in material failure analysis and accident reconstruction. With a career spanning mechanical engineering, materials science, and intellectual property, he brings a multidisciplinary perspective to litigation work. His work centers on investigating material failure mechanisms, assessing accident causation, and evaluating whether design standards were met. Mr. Batzer has been retained in numerous expert witness and consulting engagements across the United States, involving product liability, patent infringement, and vehicle crashworthiness cases. His Ph.D. in Mechanical Engineering - Engineering Mechanics, along with his Board Certified Forensic 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 mechanical failures and safety standards.

patent infringementforensic engineeringmaterial failure analysis+11

Education & Schools

BW

BRIAN WOLF

Educational Leader and Expert Witness

San Antonio, TX48 years+ yrs★ 8.1

Brian Wolf, M.Ed. is an educational leadership and crisis intervention expert specializing in K-12 school safety and behavioral management compliance. With a career spanning roles as superintendent, principal, and risk management consultant, he brings a comprehensive understanding of crisis intervention standards and regulatory compliance to his litigation work. His work centers on evaluating school district adherence to crisis intervention standards, assessing staff training adequacy, and investigating the appropriateness of physical restraint protocols. Mr. Wolf has been retained in numerous expert witness and consulting engagements across Oregon, involving cases related to crisis intervention practices, physical restraint protocols, and special education compliance. His Master of Education in Educational Leadership, along with his Initial and Continuing Administrative Licensure, 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 school district duty of care and student safety standards.

School SafetyCPI Nonviolent Crisis Intervention standards of care and best practicesPhysical restraint protocols and appropriate application+9

Pharmacology

JS

Joseph S. Bertino

Clinical Pharmacology/Toxicology Expert

Schenectady, New York30 years+ yrs★ 8.1

Joseph S. Bertino, Pharm.D is a Clinical Pharmacology/Toxicology expert specializing in drug interactions, side effects, and drug safety litigation. With a career spanning hospital, community, and nursing home practice settings, he brings a comprehensive clinical framework to evaluating pharmaceutical effects and potential deviations from standard care. His work centers on investigating medication errors, assessing drug labeling and safety, and evaluating whether overdosing or underdosing occurred. Mr. Bertino has been retained in numerous expert witness and consulting engagements across the United States, involving pharmaceutical company litigation and substance abuse disorders. His Pharm.D in Pharmacy, along with his Board Certification by the American Board of Clinical Pharmacology, 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 clinical pharmacology and toxicology.

Pharmacology- ClinicalClinical pharmacologyToxicology+11

Real Estate

DD

Dr. Dick Bridy

CEO of DBI Group and Bedrock Investments Group

Solana Beach, CA40+ years+ yrs★ 8.1

Dr. Dick Bridy, MBA, EMBA, PhD is a commercial real estate expert specializing in asset/property management and brokerage litigation. With a career spanning commercial real estate development, brokerage, investment, and leasing, he brings a strategic perspective to litigation involving fiduciary duties and industry standards. His work centers on investigating fiduciary breaches, assessing compliance with real estate standards, and evaluating whether negligence or misrepresentation occurred. Dr. Bridy has been retained in numerous expert witness and consulting engagements across the United States, involving commercial real estate transactions, property management, and development disputes. His PhD in Business, along with his MBA and EMBA, 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 commercial real estate management and operations.

Personal InjurySlip Trip & FallReconstruction-Photo/Video+17

Intellectual Property

RH

Rhonda Harper

MBA

Dallas, Texas35 years+ yrs★ 8.1

Rhonda Harper, MBA is an intellectual property and marketing expert specializing in trademark infringement, advertising disputes, and consumer behavior analysis. With a career spanning roles as a chief marketing officer, general manager, and adjunct professor, she brings a multifaceted perspective to litigation work. Her work centers on investigating intellectual property infringement, assessing misleading advertising claims, and evaluating consumer survey methodologies. Ms. Harper has been retained in numerous expert witness and consulting engagements across virtually every Federal Circuit Court, State Courts, the USPTO, the TTAB, and in arbitrations through both AAA and JAMS, involving cases such as intellectual property infringement, misleading advertising, and unfair competition. Her Master of Business Administration from Emory University Goizueta Business School, along with her extensive experience in conducting and rebutting Lanham Act trademark and advertising surveys, 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 trademark and advertising practices.

Marketing

Power Generation

AI

Arthur I. Carlisle

Consulting Engineer and Expert Witness

London★ 8.1

Chartered Mechanical Engineer with over 30 years experience in all areas of Energy, Power Generation, Industrial Plant, Project Development and Operations. I have many years’ experience working at senior level and have the knowledge and expertise to conduct investigations, advise on matters for international arbitrations, and have fulfilled the role of Expert Witness on numerous occasions. My work experience includes Major Coal, Oil and Gas Fired Energy Plants, Chemical Plants, Repair and Maintenance Facilities, and Renewable Energy Facilities comprising Wind, Solar and Biomass. Having been Project Manager and Owner’s Engineer for various multi-disciplinary projects, I have a proven track record in successfully completing complex construction projects on time and within budget. I have held the positions of Plant Engineer, Project Manager, Operations Manager, Plant Manager and Owner’s Engineer.

Industrial PlantProject DevelopmentOperations

Animals and Dogs

KC

Kimberly Cherney

Consultant and Expert in Animal Care and Welfare

Rancho Santa Margarita, CA32 years+ yrs★ 8.1

Kimberly Cherney is an animal care and welfare expert specializing in dangerous dogs, wildlife management, and animal cruelty litigation. With a career encompassing municipal animal control, wildlife management, and animal behavior, she brings a comprehensive framework to her litigation work. Her work centers on investigating animal cruelty, assessing dangerous dog incidents, and evaluating municipal animal control practices. Ms. Cherney has been retained in numerous expert witness and consulting engagements across Southern California, involving cases of animal cruelty, dog bites, and wildlife management. Her Bachelor of Science in Psychology, along with certifications in Animal Chemical Immobilization and Technical Animal Rescue, 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 animal control and welfare.

Dangerous DogsWildlife ManagementDog Bites+2

Orthopedic Surgery

WC

Woojin Cho, MD, PhD

Orthopedic Spine Surgeon

Hartsdale, New York20+ years+ yrs★ 8.1

Woojin Cho, MD, PhD is an orthopedic spine surgery expert specializing in adult spinal deformity, degenerative spine disorders, and spinal biomechanics. With a career encompassing advanced spine fellowships and leadership roles in academic spine centers across Korea and the United States, he brings a robust academic and clinical framework to his litigation work. His work centers on investigating postoperative complications, assessing surgical decision-making standards, and evaluating whether deviations from care standards occurred. Dr. Cho has been retained in numerous expert witness and consulting engagements across the United States, involving complex spine-related cases and standards of care evaluations. His MD, MS, and PhD from Hanyang University College of Medicine, along with his ECFMG 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 spinal biomechanics and surgical outcomes.

Artificial IntelligenceAdult spinal deformity & Degenerative spine disordersThoracolumbar and cervical spine+5

Education & Schools

CP

Candace Perez

Public Education Administrator

Dallas, OR21 years+ yrs★ 8.1

Candace Perez, Ed.D. is a public education administration expert specializing in school operations and safety with a specific focus on special education. With a career encompassing leadership roles in school district administration, special education oversight, and policy implementation, she brings a strategic perspective to litigation work. Her work centers on investigating compliance with educational regulations, assessing the implementation of special education programs, and evaluating whether school safety protocols meet established standards. Ms. Perez has been retained in numerous expert witness and consulting engagements across Oregon, involving cases related to special education, school safety, and district administration. Her Educational Doctorate in Educational Administration, along with her Special Education Endorsement Coursework and Gifted and Talented Education Certificate, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of compliance and responsibility in disputes involving special education and school operations.

School SafetySpecial EducationSchool Operations

Economics

MF

Megan Fasules Todd

Director

Ennis, MT★ 8.1

Megan Fasules Todd, Ph.D. is an economics expert specializing in labor economics, health economics, and economic valuation and damages calculations. With a career encompassing diverse economic analyses and consulting roles, she brings a nuanced understanding of economic impacts and valuation to her litigation work. Her work centers on investigating pay equity and discrimination, assessing wage and hour damages, and evaluating labor market trends. Ms. Todd has been retained in numerous expert witness and consulting engagements across the United States, involving class action matters, employment disputes, and breaches of contract. Her Ph.D. in Economics from American University, along with her extensive experience in econometric modeling and economic analysis, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of economic damages in disputes involving wage and hour issues, discrimination, and breach of contract.

EmploymentLabor EconomicsHealth Economics+1

Mechanical Engineering

RW

Robert W. Hickman, P.E., CMSE®

Mechanical Engineer

Irmo, SC39 years+ yrs★ 8.1

Robert W. Hickman, P.E., CMSE® is a mechanical engineering expert specializing in equipment failure and industrial hazard analysis. With a career spanning machine design, safeguarding, and damage assessment, he brings a comprehensive safety framework to litigation work. His work centers on investigating equipment failures, assessing industrial hazards, and evaluating whether machinery complies with safety standards. Mr. Hickman has been retained in numerous expert witness and consulting engagements across the southeastern United States, involving products liability and machinery safety cases. His Bachelor of Science in Mechanical Engineering from Clemson University, along with his Certified Machinery Safety Expert 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 mechanical safety and equipment failure.

SafetyEquipment FailureIndustrial Hazard Analysis+4

Automotive

DM

Dennis Madden

Expert Witness

Henderson, NV45 years+ yrs★ 8.1

Dennis Madden, Six Sigma Black Belt, ASE Certified is an automotive transmission repair and diagnostics expert specializing in transmission shop practices and operations. With a career spanning leadership roles in technical development and association management, he brings a strategic perspective to litigation work involving automotive repair standards and practices. His work centers on investigating transmission failures, assessing repair methodologies, and evaluating whether industry standards were met in automotive service disputes. Mr. Madden has been retained in numerous expert witness and consulting engagements across North America, involving cases in the automotive repair and transmission industries. His Six Sigma Black Belt in Management, along with ASE certifications in Automatic and Standard transmissions, 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 transmission diagnostics and repair practices.

Business Operations

Firearms & Ballistics

AF

Aaron Forum

SFC USA (Ret.)

Denver, CO22 years+ yrs★ 8.1

Aaron Forum, SFC USA (Ret.) is a firearms & ballistics expert specializing in firearms safety and operations within legal contexts. With a career spanning U.S. Special Operations, commercial gun range management, and firearms training, he brings a strategic operational perspective to litigation work. His work centers on investigating firearms-related incidents, assessing gun range safety protocols, and evaluating whether design flaws contributed to negligent discharges. Mr. Forum has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to gun range safety, firearms mechanics, and negligent discharge incidents. His Certificate Program from Stanford Ignite Graduate School of Business, along with certifications such as NRA Chief Range Safety Officer and Glock Armorer Course, 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 firearms safety and operational standards.

Business OperationsCase AnalysisFirearms ID/Mechanics of Operation+6

Employment

AK

Andrea Kelly Smethurst

Attorney Investigator

Walnut Creek, CA28 years+ yrs★ 8.1

Andrea Kelly Smethurst is an employment and investigation expert specializing in workplace investigations, independent investigations, and school investigations. With a career spanning nearly three decades, she brings a nuanced understanding of employment policies, practices, and legal frameworks to her litigation work. Her work centers on investigating allegations of sexual harassment, assessing claims of discrimination and retaliation, and evaluating whether bullying and EEO violations have occurred. Ms. Smethurst has been retained in numerous expert witness and consulting engagements across California, involving cases of sexual harassment, discrimination, and employment policy disputes. Her JD from the University of California, Berkeley School of Law, along with her Association of Workplace Investigator's Certificate and Certificate from AtIXa to conduct Title IX investigations, 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 human resources and employment law.

Investigation

Horses

WG

Wayne G Hipsley, BSc, MSc

Equestrian Sport & Horse Business Professional

Paris, KY20 years+ yrs★ 8.1

Wayne G Hipsley, BSc, MSc is an equestrian sport and horse business expert specializing in horse safety and welfare litigation. With a career encompassing horse behavior, training, and management, he brings a comprehensive understanding of equine practices to his litigation work. His work centers on investigating horse-related accidents, assessing horse welfare standards, and evaluating whether industry norms have been met. Mr. Hipsley has been retained in numerous expert witness and consulting engagements across the United States, involving horse accidents, personal injury, and equine business disputes. His Bachelor of Science from the University of Tennessee and Master of Science from the University of Connecticut, along with certifications in the Kentucky Livestock Welfare Investigation program and Equine Identification by Washington State 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 responsibility in disputes involving horse safety and welfare.

Agriculture

Accident Reconstruction

BJ

Brian J West

Owner, Lead Crash Reconstructionist

Saint Cloud, FL25 years+ yrs★ 8.1

Brian J West, ACTAR #3065 is an accident reconstruction expert specializing in traffic crash investigations and event data recorder analysis. With a career spanning law enforcement, military police service, and private consulting, he brings a multifaceted perspective to litigation work. His work centers on investigating crash dynamics, assessing vehicular data, and evaluating whether safety protocols were followed. Mr. West has been retained in numerous expert witness and consulting engagements across Florida, involving traffic homicide cases, pedestrian and bicycle crashes, and complex vehicular accidents. His Associates in Science in Criminal Justice Technology, along with his ACTAR Accreditation, 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 traffic incidents and crash reconstructions.

Traffic Crash InvestigationsTraffic ManagementDUI Investigations

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