Police Practices Expert Witnesses
Police practices expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on police practices. The police practices expert witness listings on this page are typically from fields/areas of expertise such as: Law Enf & Criminal Justice, Mental Health, Police Practices & Procedures, Security, and Telecommunications.
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Beth A Mohr, CFE, FSA, CFCS, CAMS, MPA, CCCI, PI
Police Expert - Experienced - Ethical - Successful
The McHard Firm
Police Practices & Procedures, Investigation
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Police Misconduct, Use of Force, Interviewing, Interrogation, False Confessions, Police Ethics, Investigative Failure, Sex Trafficking, False Arrest, Failure to Train/Supervise, Taser & ECW, Evidence Handling, Sex Crimes, Civil Rights Violations, Police Policy, Monell Claims, Human trafficking, Implicit Bias, In-custody Deaths, Appeals
Beth A. Mohr, CFE, FSA, CFCS, CAMS, CCCI, MPA, PI, is a Police Practices expert with over 30 years of sworn and non-sworn investigative experience. Ms. Mohr has testified as an expert in numerous state and federal court proceedings, depositions, and administrative hearings in both federal and state courts, including New Mexico, Ohio, Illinois, Arizona, California, and Washington state. Ms. Mohr has testified on a variety of subjects, including police procedures, police misconduct, white collar crime and fraud examinations. Her expertise has been verified by the courts via a Daubert challenge, in which Ms. Mohr was found to be qualified as an expert in police practices generally, and well as the specific areas of interviewing, interrogation, false and recanted confessions, cognitive bias, investigations and investigative failures, vice, and human trafficking. She is available as a consulting or testifying expert anywhere in North America, as well as other locations worldwide. Ms...
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Benjamin O. Warren, Jr.
LAW ENFORCMENT POLICY, LAPD SERGEANT (RET.)
Hot Pursuit, Inc.
Police Practices & Procedures, Jails & Prisons
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Pursuit Policy, Use-of-Force, Crime Foreseeability, Lethal Use-of-Force, Excessive Force, In-Custody Death, Firearms, Less-Than-Lethal, Reasonable Suspicion, Probable Cause, Searches, Internal Affairs, Crime & Arrest, Jail Policy, Jail Custody, Jail Suicide, Bars/Night Clubs, Security
POLICE PRACTICES, POLICY & PROCEDURE; JAILS AND PRISIONS EXPERT
• HONORABLY RETIRED SERGEANT, LOS ANGELES POLICE DEPARTMENT (LAPD)
o Served from April 1980 to November 2013
o Extensive field experience: 18 years responding to tens of thousands of emergency calls
o Certified Peace Officer (P.O.S.T.): Basic, Intermediate, Advanced, Supervisory
• CRIMINAL INVESTIGATIONS AND CRIMINAL JUSTICE EXPERTISE
o Detective trainee, Southeast Division, Major Assault Crimes
o Filed cases with District and City Attorneys
o Testified 150+ times as fact witness and investigator in various courts
o Specialized in Proposition 115 preliminary hearings and Peace Officer Hearsay Testimony
• TRAINING & LEADERSHIP
o Criminal Law Instructor, Los Angeles Police Academy
o Designed curriculum and trained new recruits and seasoned officers
o Promoted to Sergeant in 1998; trained and monitored officers daily
o Conducted and reviewed thousands of investigations and reports
• INTERNAL AFFAIRS; LEGAL AFFAIRS; ...
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Frank R. Vanecek
Police Practices Expert - Nationwide Practice
Full Spectrum Investigations, Expert Witness and Consulting, LLC
Police Practices & Procedures, Investigation
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Fingerprints, Homicide, Gangs, Narcotics, RICO, False arrest, False Conviction, Use of Force, Civil Rights, 42 U.S. Code § 1983, Identification, Crime Scene, Investigation, Policy and Procedure, Incident Management, Firearms, Firearms Instruction, Wrongful Conviction, Monell Claims
Available Nationwide
Police Practices Expert specializing in case review, analysis, objective opinion development and delivery through high quality reports (Rule 26) and testimony. Actions in state courts and Federal actions including 42 U.S. Code § 1983; Due Process, False Arrest, False Conviction, False Confinement, Failure to Intervene, Policy and Customs Claims, Motions to Review Capital Convictions, Brady Violations, Malicious Prosecution, Coercive Interrogation, Conspiracy, Monell Claims, and Excessive Use of Force. Many of these have been primarily associated with murder cases, and have often had gang involvement.
Over 38 years of law enforcement experience at city, county, state and federal level. Assignments worked included Patrol, K-9, Detectives, Narcotics/Task Force (DEA), Special Investigations and Internal Affairs, Organized Crime, Gaming, Metro Fugitive, Metro Gang, Major Crimes/Homicide, Dignitary Protection, Security Manager, Latent Fingerprint Examiner, Identifi...
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Michael Easter
Retired FBI Agent-CAST / Cell Site Record Expert
Cell Site and Location Intelligence
Ventura, California
Telecommunications, Law Enf & Criminal Justice
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Call Detail Records, Cellular Analysis, Cell Tower Information, Cell Site Information, Google Location History, Verizon, T-Mobile, AT&T, Timing Advance, RTT, Call Logs, Cellebrite, Social Media, GPS, FBI, CAST (Cellular Analysis Survey Team), Daubert, Frye, Cellphone, Police Practices
Mike Easter is a retired FBI Special Agent with over 25 years of investigative experience and over a decade of experience as an FBI National Asset with the Cellular Analysis Survey Team (C.A.ST.). He worked thousands of cases involving the analysis of mobile device location information to locate victims and subjects of kidnappings, homicides, robberies, other violent crimes, and national security matters. Over the course of his career, he designed and created the curriculum the FBI used to teach law enforcement partners the methodology for using mobile device location information to find the missing, the lost, and the hiding. Further, he has been an expert witness in over 250 criminal cases and taught the FBI expert witness testimony course for over a decade.
He pioneered the FBI's Critical Incident Response course, equipping investigators with essential skills in real-time crisis management and advanced investigative techniques. As an FBI instructor, he honed his ability to deliv...
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Tony Turnbull
Police Practices Expert-Nationwide
Turnbull Consulting
Cameron Park, California
Police Practices & Procedures, Law Enf & Criminal Justice
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Civil Rights, Interrogations, Police Practices, Search & Seizure, Laws of Arrest, Wrongful Conviction, False Arrest, Officer Involved Shootings, Homicide, Crime Scenes, In-Custody Deaths, Criminal Investigations, Jails & Prisons, Admin Investigations, Cell Phone Analysis, Probable Cause, Violent Crimes, Cold Case, Jails, Prisons
I am a retired Sergeant with the Sacramento County Sheriff's Office. I have over 30 years of law enforcement experience. I am a Police Practices Expert with a wide range of expertise, including but not limited to, Major Crime Scene Management, Homicide Investigations, Criminal Investigative Practices, Cellular Phone Forensic Analysis, Officer Involved Shooting Investigations, In-Custody Deaths, Interview & Interrogation Techniques (both Reid and Science Based), and other in-depth investigations, including Conspiracy, Robbery, Missing Persons, Kidnapping, Murder for Hire, Gang Related Crimes, and Narcotics.
I provide consulting and expert witness services specializing in extensive and in-depth case reviews, analysis, and independent and objective opinion development for thorough Rule 26 reports and testimony. I am an instructor with California POST Robert Presley's Institute of Criminal Investigations including Investigators Core, Homicide Investigations, Officer Involved Shooting ...
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John A Campanella, SHRM-SCP
Law Enforcement Policy and Procedures Expert
Campanella Consulting Group, Inc.
Newark, Delaware
Police Practices & Procedures, Law Enf & Criminal Justice
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Police policy, police procedure, police standards, police practices, policy compliance, police misconduct, police, investigations, human resources, neglect of duty, fail to train, negligent retention, negligent hiring, law enforcement, private sector workplace investigation, workplace investigations, internal affairs
I am a retired Captain of the Delaware State Police with over 32 years of service, retiring in September 2017 after concluding my career as Director of Human Resources. My assignments included command-level leadership and progressively responsible roles in policy and procedure development, compliance monitoring, internal and external investigations, training and development, program management, and executive leadership. In addition to my operational work, I conducted approximately six sensitive internal affairs investigations for the Delaware State Police and served on disciplinary review boards both as an officer and as a commanding officer. These responsibilities gave me practical experience in applying standards of conduct, evaluating officer candor, and recommending discipline in complex cases.
As Director of Human Resources, I was responsible for all hiring and separation decisions concerning the Division’s civilian employees and made hiring recommendations for sworn troope...
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Mark J Lang
Negligent Security & Police Practices Expert, MCJ
Investigations HQ
Orlando, Florida
Law Enf & Criminal Justice, Security
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Negligent Security, Police Practices, Security Policies and Procedures, Premises Liability, Police Standards and Procedures, Criminal Investigations, Security Management, Law Enforcement Operations, Patient Elopement, Hospital Security, Behavior Health Security, CPTED, Healthcare Security, Workplace Violence in Health
Mark J. Lang, MCJ, CPP, CHPA, is the Owner and Principal Consultant of Investigations HQ, LLC, a Florida-based private investigations and security consulting firm. With more than 40 years of experience in law enforcement, healthcare security, private investigations, and security management, Mr. Lang is recognized as an expert in negligent security, premises liability, hospital security, law enforcement practices, and police standards and procedures.
Mr. Lang retired from the Orange County Sheriff's Office (Florida) as a Captain assigned to the Special Investigations Division, where he supervised specialized units including Undercover Narcotics, Fugitive Apprehension, Criminal Intelligence, Vice, Pharmaceutical Investigations, and various federal and local task force operations. His extensive law enforcement career included leadership assignments in patrol, tactical operations, criminal investigations, and special operations.
Following his law enforcement career, Mr. Lang became th...
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Dave Glick, EdM, LCSW, CASDCS, CEAP
Police & Autism Clinical Practices Expert
Triad Psych, pc
Atlanta, Georgia
Mental Health, Law Enf & Criminal Justice
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Autism, Disability, Police, Workplace Violence, Child Abuse, Child Custody, Special Education, Police Practices Expert-Former DEA Clinician, Police Practices Expert-Former Faculty Police Academy, Police Practices Expert-Current On Call Clinician FBI, Disability Services & Evaluation
Triad Psych is an independent group clinical, counseling and consulting practice since 2003. Feedback about our work emphasizes the ability to take complex abstractions and break it down into simpler, concrete, jargon free and understandable terms enabling juries and judges to fully grasp the concept at hand and make a clear decision. Triad's unique approach to complexity enables it's clients to be able to impose a context on and over almost any situation, provide guidance and be able to make tangible progress; the Triad system makes the invisible visible, clearing a viable and concrete path forward to achieve goals. Dave Glick and Elizabeth Snelgrove-Arauz, have been providing litigation and expert support since 1999. Dave has specializations in mental health, police psychology, special education, disability services(ADA & Section 504). Both have expertise in Autism Spectrum Disorders and all areas of neurodiversity. Elizabeth has specialization in the intersectionality of Neurodi...
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Kevin D. Lutz
Police Practices Expert - Former Chief & Director
Lutz Sentinel LLC
Princeton, New Jersey
Police Practices & Procedures, Law Enf & Criminal Justice
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Police Practices, Constitutional Policing, Police Supervision, Strategic Planning, Use of Force, Police Misconduct & Accountability, Defensive Tactics, Early Warning, Policy Development, Tactical Operations, De-escalation, Training Standards, Risk Management, ICS, Internal Affairs, Litigation Support, Accredidation
Kevin D. Lutz is a highly experienced senior law enforcement executive with more than 25 years of operational and command-level experience. On January 1, 2024, he was appointed Director of New Jersey’s Office of Law Enforcement Professional Standards (OLEPS), becoming the first active law enforcement officer to serve in that role. In this position, he was responsible for statewide law enforcement accountability and internal affairs functions for the New Jersey State Police, as well as the more than 30,000 municipal law enforcement officers across the state. Prior to his appointment by the Attorney General, Mr. Lutz served as Chief of Police for the Rutgers University Police Department–Camden.
As a police executive with the Camden County Police Department, Mr. Lutz played a central role in the City of Camden’s public safety transformation through initiatives focused on organizational reform, community engagement, training, and accountability, resulting in historic reductions in viol...
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Christopher Barrella, JD, MPA
Police Procedures / Supervision / Rules & Regs
Melville , New York
Police Practices & Procedures, Law Enf & Criminal Justice
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Police Practices, Police Procedures, Attorney, FBI National Academy, Discipline, Rules and Regulations, Internal Investigations, Interviewing, Statements, ICS, Special Events, Property Management, Dispatching, Call Intake, Field Training, Scheduling, Police Supervision, Police Policies, Radio Communicaiton, Body Worn Cameras
Decorated 30 Year Veteran with concentration in Patrol Operations / Current Part-Time Bay Constable
JD, MPA, FBI National Academy #234th Session.
CERTIFICATES AND TRAINING
• Incident Command System (ICS) 100, 200, 241, 242, 300, 400, 700 & 800
• FBI National Academy Associates Annual Training Conference NYSEC, Saratoga Springs (2024 & 2025)
• TASER Certification – Town of Babylon (2025)
• FBI National Academy Associates Annual Training Conference, Kansas City (2024)
• Annual pistol / OC spray / collapsible baton training – Town of Babylon, New York (2024 - present)
• Use of Force – NYS Department of Criminal Justice Services (2023 - present)
• Mass Casualty Response Leadership Forum – FBI National Academy Associates (2022)
• Effectively addressing active shooter incidents – FBI National Academy Associates (2021)
• HR-218 M-4 Carbine rifle / pistol / revolver certification (2020 – Present)
• International Institute for Counter-Terrorism, IDC Herzliya College, Israel (2019...
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Dr. Ken Lang
Homicide Detective (Ret.) – Police Practices
KEN LANG CONSULTING, LLC
Milligan, Tennessee
Police Practices & Procedures, Law Enf & Criminal Justice
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criminal investigation, crime scene analysis, crime scene reconstruction, use of force, death scene, homicide, murder, shootings, self defense, USCCA, NRA, rape, sex crimes, sex offense, sexual assault, violent crime, robbery, police practices, composite sketch
Dr. Ken Lang is a retired 25‑year law enforcement veteran and former homicide detective with extensive experience in violent‑crime investigations, police practices and procedures, and use‑of‑force analysis. He has conducted and supervised investigations involving homicides, rapes, robberies, and other major crimes, and he currently serves as an associate professor of criminology/criminal justice at Milligan University. Dr. Lang holds a Ph.D. in Criminal Justice and provides expert consultation and testimony in matters involving criminal investigations, police practices, use of force, officer involved shootings, evidence handling, and investigative failures.
Dr. Lang began his law enforcement career in 1989 with the Havre de Grace Police Department before joining the Baltimore County Police Department (BCoPD) in 1991, where he served for 23 years. His investigative career included 15 years assigned to violent‑crime investigations and 5 years investigating property crimes. His casewo...
