Daniel Fournier
Bend, OR 97702
Daniel Fournier is a retired Los Angeles Police Department Detective III with 30 years of experience across patrol, supervision, and complex criminal investigations, including more than 20 years of detective and violent-crime work. He brings Titan National Consulting Group practical field, detective-table, and supervisory perspective in gang-related, violent-crime, and police-practices matters.
Daniel served as a Police Officer, Sergeant, Detective II, and Detective III, with assignments in gang enforcement and investigations, homicide and violent-crime investigations, Major Assault Crimes, Crimes Against Persons, the Special Problems Unit, the Safer Cities Initiative, and the Violent Crime Task Force. Most recently, as a Detective III at North Hollywood Division, he managed Major Assault Crimes, Crimes Against Persons, and gang investigative functions, supervising detective caseloads and investigative quality and reviewing shootings, assaults, threats, hate-related incidents, and complex case dispositions.
Daniel also served approximately three years as a Reserve Deputy Probation Officer with the Los Angeles County Probation Department in gang and narcotics supervision. He holds bachelor’s degrees in history and political science from California State University, Northridge, and California POST Basic, Intermediate, and Supervisory certifications. He has integrated AI-based analytical tools into policy review, investigative quality control, and case tracking, and has served as an independent law enforcement technical advisor for National Geographic, CBS News, and a feature film.
At Titan, Daniel provides consulting and case-analysis support in gang-related, violent-crime, and police-practices matters. He reviews law enforcement records, investigative reports, body-worn video, dispatch materials, surveillance evidence, and policies, and evaluates gang indicators, investigative practices, foreseeability, and case theory. He is available for plaintiff and defense matters, including record review, expert opinions, report and declaration preparation, and deposition and trial preparation.
- Crime Foreseeability
- Gangs
- Law Enforcement
- Police Procedures
- Violent Crimes
- Q: Please list your professional accreditations, degrees, licenses, and certificates granted:
- A: Los Angeles Police Department (LAPD)
Retired after 30 years of service. Held progressively responsible positions including Police Officer, Sergeant, Detective I, Detective II (Supervisor), and Detective III (Manager).
Los Angeles Superior Court
Court-qualified expert in criminal street gangs.
California Commission on Peace Officer Standards and Training (POST)
Basic, Intermediate, Advanced, and Supervisory POST Certificates.
Los Angeles County Probation Department
Former Reserve and Senior Reserve Deputy Probation Officer. Graduate of the Los Angeles County Probation Department Reserve Academy.
California State University, Northridge
Bachelor of Arts, Political Science
Bachelor of Arts, History
Los Angeles Police Academy
Graduate, Los Angeles Police Academy. - Q: Please list any teaching or speaking experience you have had, including subject matter:
- A: Courtroom Testimony Experience
Testified approximately 75 times in California Superior Court and U.S. Federal Court on a wide range of criminal matters, including violent crime, gang-related investigations, investigative procedures, evidence, and law enforcement practices. Experienced in presenting complex investigative findings and law enforcement concepts clearly and effectively in a courtroom setting.
National Geographic Documentary Series – American Cartel
Served as a law enforcement subject-matter expert and on-camera interview contributor for the National Geographic documentary series American Cartel. Provided expert analysis regarding the Vineland Boys criminal street gang, its organization and criminal activities, and its connections to the Sinaloa Cartel and transnational narcotics trafficking.
KCBS News – Law Enforcement Subject-Matter Expert
Served as a law enforcement subject-matter expert for multiple KCBS News reports addressing violent crime in Los Angeles. Provided expert analysis and commentary regarding violent-crime trends, criminal investigations, gang-related activity, and law enforcement practices.
LAPD Public Service Announcement Video Presentations
Developed and produced multiple LAPD public service announcement video presentations addressing domestic violence, burglary and theft from motor vehicles, and package theft. Provided law enforcement subject-matter expertise and developed public-safety messaging focused on crime prevention, victim awareness, and community education.
Los Angeles Police Department Training
Continuous Department Training (CDT) for officers, detectives and command staff: Major Assault and Violent Crime Investigations; Homicide Investigations; Gang Investigations and PC 186.22; Domestic Violence; Investigative Interviewing; Search and Seizure; Use of Force and Policy Compliance; Body-Worn Video Review; Report Writing and Case Documentation; Crime Analysis; Investigative Supervision; Internal/Administrative Investigations; and Courtroom Testimony.
- Q: Have any of your accreditations ever been investigated, suspended or removed? (if yes, explain)
- A: No
- Q: On how many occasions have you been retained as an expert?
- A: Approximately 15-20 times for the Los Angeles County District Attorney's office.
- Q: For what area(s) of expertise have you been retained as an expert?
- A: Gang Expertise
- Q: In what percentage of your cases were you retained by the plaintiff?
- A: 100%
- Q: On how many occasions have you had your deposition taken?
- A: Two times.
- Q: When was the last time you had your deposition taken?
- A: 2025
- Q: On how many occasions have you been qualified by a court to give expert testimony?
- A: Approximately 15-20 times
- Q: On how many occasions have you testified as an expert in court or before an arbitrator?
- A: None
- Q: For how many years have you worked with the legal industry as an expert?
- A: Approximately 26 years
- Q: What services do you offer? (E.g.: consulting, testing, reports, site inspections etc.)
- A: Expert witness and litigation consulting services, including case review and analysis, police practices and procedures, investigative standards, gang-related matters, violent crime and homicide investigations, use of force, officer conduct, body-worn video review, internal and administrative investigations, and law enforcement policy compliance. Services include review of police reports, video and digital evidence, investigative files, policies and procedures; preparation of written expert reports and opinions; case strategy consultation; deposition and trial testimony; attorney consultation; and evaluation of law enforcement actions against accepted practices, training, and departmental standards.
Available Upon Request