Interrogation and Interviewing Expert Witnesses: 5

Adam Bercovici has over 40 years of experience in the Police and Security field. Mr. Bercovici spent 30 of those years with the LAPD, 20 as a supervisor and manager. He is currently a retired LAPD lieutenant and former security company CEO.

Background: Mr. Bercovici's leadership assignments included the Criminal Investigation Section- Major Crimes Division-The Joint Terrorism Task Force, The FBI Violent Crime Task Force ( where he supervised the FBI Fugitive Task Force), The Special Investigation Section, and Homicide Special Section. 

Since 2012, Mr. Bercovici has worked as a licensed private investigator and subject matter expert, and consultant in the areas of Police Practices and Complex Police Investigations. His clients have included major law firms, insurance companies, and corporations.  Mr. Bercovici is currently retained on several high-profile cases.  He is an experienced Expert Witness who has written numerous Rule 26 Reports and has testified in both State and Federal courts.  Writing examples can be provided.  Mr. Bercovici has been an on-air talent, producer, and script and story consultant in the entertainment industry.  He was the Co-Talent on The History Channel Series JFK Declassified-Tracking Oswald.  Mr. Bercovici was the Executive Producer for American Cartel for Discovery Plus. 

Litigation Support: Adam Bercovici splits his work between defense and plaintiff. He has been retained by major civil rights firms, major municipalities and their legal counsel, plaintiff attorneys, city attorneys, and criminal defense attorneys. Mr. Bercovici accepts work based on the merits of the individual case.

Areas of Expertise: 

Beth A. Mohr, CFE, CFCS, CAMS, CCCI, MPA, PI, is a Law Enforcement / Police Misconduct expert with over 30 years of sworn and non-sworn investigative experience. Ms. Mohr is credentialed as a Nationally Certified Law Enforcement Instructor by the International Association of Directors of Law Enforcement Standards and Training, and is one of fewer than 150 individuals who have been nationally certified as an expert law enforcement instructor.  She is a Certified Fraud Examiner, Certified Anti-Money Laundering Specialist (CAMS), Certified Financial Crimes Specialist (CFCS) and a Certified Cyber Crimes Investigator (CCCI). She is also a Private Investigator licensed in New Mexico, Arizona, and California.

Ms. Mohr has testified as an expert in California, Ohio, Illinois, New Mexico, Arizona, and Washington state, in federal and state courts, on a variety of subjects, including police procedures, police misconduct, white collar crime, and fraud examinations.  Ms. Mohr's qualifications as a police practices expert have been confirmed by the courts through a Daubert challenge, during which the courts specifically affirmed Ms. Mohr's expert qualifications in the areas of interviewing, interrogation, recanted and false confessions, investigative processes, vice, and human trafficking.

Ms. Mohr has written articles on the topic of police practices, including a forthcoming chapter entitled Skepticism, in the book The Art of the Investigation Revisited.  In addition to articles for peer-reviewed publications, Ms. Mohr has written and taught dozens of law enforcement courses which have been approved for law enforcement credit, including California POST accreditation.

During her career with the San Diego Police Department, Ms. Mohr she was awarded three Commanding Officer’s Citations, which are the highest awards offered by the San Diego Police Department for investigative acumen, at the time.  After retiring from the San Diego Police Department, she conducted death penalty mitigation investigations, and other complex felony investigations, including homicide and white-collar cases, for the Whatcom County, Washington, Public Defender’s Office.   This includes conducting investigations of allegations of police misconduct for the City of Albuquerque Independent Review Office.  Ms. Mohr recently chaired the City of Albuquerque’s Police Oversight Board, a civilian board which was created as part of the US Department of Justice’s Consent Decree with the City of Albuquerque and the Albuquerque Police Department. 

Ms. Mohr has taught courses on law enforcement topics including interviewing techniques, investigative ethics, evidence collection, financial and fraud investigations, and many other topics.  Her ethics courses, investigative courses, and fraud courses are certified for law enforcement credit.  Ms. Mohr is a POST Certified law enforcement instructor in California, and a Nationally Certified Law Enforcement Instructor.  

Beth A. Mohr is available as a consulting or testifying expert anywhere in North America, as well as many international locations.  She is neutral, fair, and her opinions are rooted in provable facts.  She strives to balance her cases between defense and plaintiff-sided cases, and also provides habeas consulting services.  

Areas of Expertise:

Myron K. Smith is a Narcotics Expert with over 30 years of experience in his field of expertise. He provides Consultation and Expert Testimony in cases involving Narcotics offenses. Mr. Smith is a panelist and instructor to law enforcement officers, government officials, and grand juries on Police Procedures and Drug Identification. He has been accepted in several states (Local and Federal Courts) in all facets of narcotic criminal investigations.

Areas of Expertise:

Background Experience - Prior to founding S.E.C. Group, Inc., Mr. Smith worked with the Metropolitan Police Department of the District of Columbia for 30 years, the last 13 years in the Narcotics and Special Investigations Unit. He has been recognized as the Resident Narcotic Expert by the DC Superior Court and the US District Court of Washington, DC. Mr. Smith has been awarded over 20 citations and commendations for achievements in law enforcement as a Grade 2 Detective.

Selected Career Highlight:

• Selected as the Lead Investigator on several narcotic cases-supervising the coordinating of all appropriate personnel and required organizational efforts
• Participated in over 1,000 narcotic related investigations with the MPD and other agencies such as the Drug Enforcement Agency (DEA), Alcohol, Tobacco and Firearms (ATF), Federal Bureau of Investigations (FBI), Military Services, and Local Police Department
• Worked extensively in an “undercover” capacity on over 100 assignments to combat illegal narcotic activities
• Provided courtroom “expert testimony” in over 1,000 cases involving the prosecution of narcotic offenses

My name is David T. Sweeney.  I am a Police Policy and Procedure expert and a retired 34-year veteran police leader with Seattle Police and Oregon State University PD.  I have decades of experience supervising a large number of police officers and supervisors. I am currently employed as adjunct faculty in the School of Police Staff and Command at Northwestern University. I enjoy assisting with expert reviews of policing best practices for a variety of legal standards for police departments. As an expert witness, I have been pleased to work with both plaintiff and defense attorneys. I will give you an honest assessment of your case, so that I can provide the best reports and helpful testimony. I have experience with 28 total cases: 11 defense cases and 17 plaintiff cases.

Litigation Support - My goal is to improve best practices in policing by offering expert witness and police consultation services. I am also a trained mediator specializing in workplace conflicts. I provide honest, unbiased opinions. I will be happy to review and discuss your case. I will point out strengths and weaknesses of the case, and we can work on next steps, whether it be further case review, expert report, deposition, or trial testimony. I have spent 20 years as a sergeant and lieutenant, responsible for training and reviewing topics such as police pursuits, use of force, police tactics, de-escalation, police supervision, less lethal weapons, active shooter, SWAT, crowd control, legal standards, EEO, Human Resources, U.S. 1983 cases, and more.

 Areas of Expertise:

View David T. Sweeney's Consulting Profile.

Marlon P. Marrache, Police Sergeant (Retired), JD, is a highly effective Law Enforcement Professional with exemplary skills in Police Administrative Discipline / Misconduct and Use of Force Investigations. 

Mr. Marrache is a 24 year veteran and has over 12 years of Police Misconduct Investigation, adjudication, and examination experience. He has been assigned to Internal Affairs as an Associate Advocate conducting Board of Rights Hearings, and to Officer Representation Section defending police officers. Mr. Marrache has:

• Demonstrated expertise in Peace Officer Bill of Rights Act (POBRA)
• Demonstrated expertise in Police Mediation (i.e., Biased Policing Complaints)

Litigation Support - Mr. Marrache is Subject Matter Expert in Administrative Police Misconduct and a Subject Matter Expert in Categorical Use Of Force Investigations with an emphasis in Officer Involved Shootings (OIS). He provides Expert Testimony in Internal Affairs investigations and renders fair, reasonable, and impartial recommendation on "adjudication" and "penalty" of completed investigations.

Areas of Expertise:

Marlon P. Marrache: How Police Are Held Accountable

Degrees and Certifications - Supervisory CA POST certificate - Certified LAPD Instructor - Juris Doctorate Degree from Pacific Coast University School of Law. Mr. Marrache has instructed in LAPD supervisor school on the topic of POBRA & Use of Force