• 1 State agencies
  • 2 County agencies
  • 3 Municipal agencies
  • 4 College and University agencies
  • 5 School Agencies
  • 6 Special district agencies
  • 7 Federal law enforcement agencies in California
  • 8 Defunct agencies
  • 9 See also
  • 10 References

CA State Agencies

Los Angeles Police Department (Top) and Los Angeles County Sheriff’s Department (Bottom) patrol cars

  • California Department of Justice
    • California Bureau of Investigation – Special Agents
    • California Bureau of Firearms – Special Agents
    • California Bureau of Forensic Services
    • California Bureau of Gambling Control – Special Agents
    • California Bureau of Medi-Cal Fraud & Elder Abuse – Special Agents
  • California Highway Patrol
  • California Department of Corrections and Rehabilitation
    • California Office of Correctional Safety – State Fugitive Apprehension Teams & Special Service Unit
  • California Department of Alcoholic Beverage Control- Agents
  • California Department of Fish and Wildlife – Game Wardens
  • California State Parks Peace Officer
  • California Department of Toxic Substances Control – Criminal Investigators
  • California Department of Motor Vehicles Investigations Division – Investigator
  • Department of Insurance – Investigations Division
  • Franchise Tax Board – Investgations Bureau
  • California Lottery Security and Law Enforcement Division
  • California Department of Consumer Affairs, Division of Investigation
  • California Department of Forestry and Fire Protection – Law Enforcement Division
  • California Department of Health Care Services – Investigations Branch
  • California Department of Public Health, Food and Drug Branch
  • Department of Alcoholic Beverage Control – Investgations Division
  • California Health and Human Services Agency
    • California Department of State Hospitals – Hospital Police Officers
    • Office of Law Enforcement Support
    • Office of Special Investigations
    • California Department of Developmental Services – Developmental Center Police Officers

County Agencies in CA

  • Alameda County
    • Alameda County Sheriff’s Office
    • Alameda County Probation Department
  • Alpine County Sheriff’s Department
  • Amador County Sheriff’s Office
  • Butte County Sheriff’s Office
  • Calaveras County Sheriff’s Department
  • Colusa County Sheriff’s Office
  • Contra Costa County Sheriff’s Office
  • Del Norte County Sheriff’s Office
  • El Dorado County Sheriff’s Office
  • Fresno County Sheriff’s Department
  • Glenn County Sheriff’s Office
  • Humboldt County Sheriff’s Office
  • Imperial County Sheriff’s Office
  • Inyo County Sheriff’s Office
  • Kern County
    • Kern County Sheriff’s Department
    • Kern County Probation Department
    • Kern County Parks and Recreation: Park Rangers
  • Kings County Sheriff’s Department
  • Lake County Sheriff’s Department
  • Lassen County Sheriff’s Office
  • Los Angeles County
    • Los Angeles County Sheriff’s Department
    • Los Angeles County Probation Department
  • Madera County Sheriff’s Department
  • Marin County Sheriff’s Office
  • Mariposa County Sheriff’s Department
  • Medocino County Sheriff’s Office
  • Merced County Sheriff’s Office
  • Modoc County Sheriff’s Office
  • Mono County Sheriff’s Department
  • Monterey County Sheriff’s Office
  • Napa County Sheriff’s Department
  • Nevada County Sheriff’s Office
  • Orange County Sheriff’s Department
  • Placer County Sheriff’s Office
  • Plumas County Sheriff’s Office
  • Riverside County Sheriff’s Department
  • Sacramento County
    • Sacramento County Sheriff’s Department
    • Sacramento County Park Rangers
  • San Benito County, California
    • San Benito County Sheriff’s Office
      • San Benito County Marshal’s Office
  • San Bernardino County
    • San Bernardino County Sheriff’s Department
    • San Bernardino County Probation Department
  • San Diego County
    • San Diego County Sheriff’s Department
    • San Diego County Probation Department
  • San Francisco Sheriff’s Department
  • San Joaquin County Sheriff’s Department
  • San Luis Obispo County Sheriff’s Department
  • San Mateo County Sheriff’s Office
  • Santa Barbara County Sheriff’s Office
  • Santa Clara County
    • Santa Clara County Sheriff’s Office
    • Santa Clara County Park Ranger
    • Santa Clara County Department of Correction
  • Santa Cruz County Sheriff’s Office
  • Shasta County Sheriff’s Office
  • Sierra County Sheriff’s Office
  • Siskiyou County Sheriff’s Department
  • Solano County Sheriff’s Office
  • Sonoma County Sheriff’s Department
  • Stanislaus County Sheriff’s Department
  • Sutter County Sheriff’s Department
  • Tehama County Sheriff’s Office
  • Trinity County Sheriff’s Department
  • Tulare County Sheriff’s Office
  • Tuolumne County Sheriff’s Office
  • Ventura County Sheriff’s Office
  • Yolo County Sheriff’s Department
  • Yuba County Sheriff’s Department

Municipal Agencies in CA

  • Adelanto Police Department
  • Alameda Police Department
  • Alhambra Police Department
  • Anaheim Police Department
  • Antioch Police Department
  • Arcadia Police Department
  • Arcata Police Department
  • Arvin Police Department
  • Atascadero Police Department
  • Atherton Police Department
  • Auburn Police Department
  • Azusa Police Department
  • Bakersfield Police Department
  • Baldwin Park Police Department
  • Banning Police Department
  • Barstow Police Department
  • Beaumont Police Department
  • Bell Gardens Police Department
  • Bell Police Department
  • Belmont Police Department
  • Benicia Police Department
  • Berkeley Police Department
  • Beverly Hills Police Department
  • Bishop Police Department
  • Blythe Police Department
  • Brawley Police Department
  • Brea Police Department
  • Brentwood Police Department
  • Buena Park Police Department
  • Burbank Police Department
  • Burlingame Police Department
  • Calexico Police Departmet
  • California City Police Department
  • Calipatria Police Department
  • Campbell Police Department
  • Capitola Police Department
  • Carlsbad Police Department
  • Carmel-by-the-Sea Police Department
  • Cathedral City Police Department
  • Ceres Police Department
  • Chico Police Department
  • Chino Police Department
  • Chula Vista Police Department
  • Citrus Heights Police Department
  • Claremont Police Department
  • Clearlake Police Department
  • Clayton Police Department
  • Clovis Police Department
  • Coachella Police Department
  • Colton Police Department
  • Concord Police Department
  • Corcoran Police Department
  • Corona Police Department
  • Coronado Police Department
  • Costa Mesa Police Department
  • Cotati Police Department
  • Covina Police Department
  • Culver City Police Department
  • Cypress Police Department
  • Daly City Police Department
  • Danville Police Department
  • Davis Police Department
  • Delano Police Department
  • Del Rey Oaks Police Department
  • Desert Hot Springs Police Department
  • Dinuba Police Department
  • Dixon Police Department
  • Downey Police Department
  • Dublin Police Department
  • East Palo Alto Police Department
  • El Cajon Police Department
  • El Centro Police Department
  • El Cerrito Police Department
  • El Monte Police Department
  • El Segundo Police Department
  • Elk Grove Police Department
  • Emeryville Police Department
  • Escondido Police Department
  • Eureka Police Department
  • Glendora Police Department
  • Grass Valley Police Department
  • Greenfield Police Department
  • Hanford Police Department
  • Hawthorne Police Department
  • Hayward Police Department
  • Healdsburg Police Department
  • Hemet Police Department
  • Hercules Police Department
  • Hillsborough Police Department
  • Hillsdale Police DepartmentHoltville Police Department
  • Huntington Beach Police Department
  • Huntington Park Police Department
  • Huron Police Department
  • Imperial Police Department
  • Indio Police Department [22]
  • Inglewood Police Department
  • Irvine Police Department
  • Irwindale Police Department
  • Kensington Police Department
  • Kerman Police Departmet
  • King City Police Department
  • Kingsburg Police Department
  • Laguna Beach Police Department
  • Lakeport Police Department
  • La Mesa Police Department
  • La Palma Police Department
  • La Quinta Police Department
  • La Verne Police Department
  • Lemoore Police Department (California)
  • Lindsay Public Safety Department
  • Livermore Police Department
  • Lodi Police Department
  • Lompoc Police Department
  • Long Beach Police Department
  • Los Alamitos Police Department
  • Los Altos Police Department
  • City of Los Angeles
  • Madera Police Department
  • Mammoth Lakes Police Department
  • Manhattan Beach Police Department
  • Manteca Police Department
  • Maricopa Police Department
  • Marina Police Department
  • Martinez Police Department
  • Marysville Police Department
  • Maywood-Cudahy Police Department
  • McFarland Police Department
  • Menlo Park Police Department
  • Mendota Police Department
  • Merced Police Department
  • Milpitas Police Department
  • Mill Valley Police Department
  • Millbrae Police Department
  • Modesto Police Department
  • Monrovia Police Department
  • Montclair Police Department
  • Montebello Police Department
  • Monterey Police Department
  • Monterey Park Police Department
  • Moraga Police Department
  • Morgan Hill Police Department
  • Morro Bay Police Department
  • Mountain View Police Department
  • Murrieta Police Department
  • National City Police Department
  • Napa Police Department
  • Newark Police Department
  • Newport Beach Police Department
  • Novato Police Department
  • City of Oakland
    • Oakland Police Department
    • Oakland Housing Authority Police Department
  • Oakdale Police Department
  • Oakley Police Department
  • Oceanside Police Department
  • Ontario Police Department
  • Orange Police Department
  • Orange Grove Police Department
  • Orinda Police Department
  • Oroville Police Department
  • Oxnard Police Department
  • Pacifica Police Department
  • Pacific Grove Police Department
  • Palm Springs Police Department
  • Palo Alto Police Department
  • Palos Verdes Estates Police Department
  • Paradise Police Department
  • Pasadena Police Department
  • Paso Robles Police Department
  • Pinole Police Department
  • Pismo Beach Police Department
  • Pittsburg Police Department
  • Placentia Police Department
  • Pleasant Hill Police Department
  • Pleasanton Police Department
  • Pomona Police Department
  • Port Hueneme Police Department
  • Redlands Police Department
  • Redondo Beach Police Department
  • Redwood City Police Department
  • Rialto Police Department
  • Richmond Police Department
  • Ridgecrest Police Department
  • Rio Dell Police Department
  • Rio Vista Police Department
  • Ripon Police Department
  • Riverside Police Department
  • Rocklin Police Department
  • Roseville Police Department
  • Sacramento Police Department
  • Salinas Police Department
  • San Anselmo Police Department
  • San Bernardino Police Department
  • San Diego Police Department
  • Sand City Police Department
  • San Fernando Police Department
  • City of San Francisco
    • San Francisco Police Department
    • San Francisco Patrol Special Police
  • San Gabriel Police Department
  • San Jose Police Department
  • San Leandro Police Department
  • San Lorenzo Police Department
  • San Luis Obispo Police Department
  • San Marino Police Department
  • San Mateo Police Department
  • San Pablo Police Department
  • San Rafael Police Department
  • San Ramon Police Department
  • Santa Ana Police Department
  • Santa Barbara Police Department
  • Santa Clara Police Department
  • Santa Cruz Police Department
  • Santa Maria Police Department
  • Santa Monica Police Department
  • Santa Paula Police Department
  • Santa Rosa Police Department
  • Sand City Police Department
  • Sausalito Police Department
  • Scotts Valley Police Department
  • Seal Beach Police Department
  • Seaside Police Department
  • Sebastopol Police Department
  • Selma Police Department
  • Shafter Police Department
  • Sierra Madre Police Department
  • Signal Hill Police Department
  • Simi Valley Police Department
  • Sonora Police Department
  • South Gate Police Department
  • South Lake Tahoe Police Department
  • South Pasadena Police Department
  • South San Francisco Police Department
  • Stockton Police Department
  • Suisun City Police Department (California)
  • Sunnyvale Department of Public Safety
  • Taft Police Department
  • Tehachapi Police Department
  • Tiburon Police Department
  • Torrance Police Department
  • Tracy Police Department
  • Truckee Police Department
  • Tulare Police Department
  • Turlock Police Department
  • Tustin Police Department
  • Ukiah Police Department
  • Union City Police Department
  • Upland Police Department
  • Vacaville Police Department
  • Vallejo Police Department[citation needed]
  • Ventura Police Department[citation needed]
  • Vernon Police Department
  • Visalia Police Department
  • Walnut Creek Police Department
  • Watsonville Police Department
  • West Covina Police Department
  • West Sacramento Police Department
  • Westminster Police Department
  • Westmoreland Police Department
  • Whittier Police Department
  • Willits Police Department
  • Winters Police Department
  • Woodlake Police Department
  • Woodland Police Department
  • Weed Police Department
  • Yuba City Police Department
  • Yreka Police Department

District Police Department in CA

  • Allan Hancock Community College Police Department
  • ntelope Valley College District Police
  • Azusa Pacific University Campus Safety
  • California State University police departments
  • Cerritos Community College Police Department
  • Chaffey College Police Department
  • Chapman University Department of Public Safety
  • Coastline Community College District Police Department
  • Coastline Community College Public Safety
  • College of the Sequoias District Police Department
  • Contra Costa Community College District Police Services
  • Crafton Hills Community College Police Services
  • Cuesta College Police Department
  • El Camino College Police Department
  • Fontana Unified School District Police Department
  • Foothill-De Anza College District Police Department
  • ary’s College of California Department of Public Safety
    • San Bernardino Community College District Police Department
    • San Diego Community College Police Department
    • San Francisco Community College Police Department
    • San Joaquin Delta College District Police Department
    • San Jose/Evergreen College District Police Department
    • San Mateo Community College District Department of Public Safety
    • Stanford Department of Public Safety
    • State Center Community College District Police Department

University of California Police Department

    • University of the Pacific Police Department
    • University of the Pacific Police Department
    • University of California Police Department
    • University of San Francisco Department of Public Safety
    • University of Southern California Department of Public SafetyVentura County Community College Police Departmen
    • West Valley-Mission Community College District Police
    • Yuba College Police Department
    • Santa Rosa Junior College District Police Department
    • Santa Monica College Police Department
    • Sasta College Police Department
    • South Orange County Community College
    • District Department of Campus Safety

School Agencies

  • The LAPD Administrati
  • Goldenwest College Public Safety
  • Hartnell College Campus Safety Department
  • Irvine Valley College Police Department
  • Los Rios Community College Police Department
  • Merced Community College Police Department
  • Notre Dame de Namur University Department of Public Safety
  • Orange Coast Community College Campus Public Safety
  • Pasadena Area Community College District Police Department
  • Pepperdine University Department of Public Safety
  • Riverside Community College District Police
  • Saddleback College Police Department
  • Saint Mon Building, the headquarters of the Los Angeles Police
  • Department in downtown Los Angeles.
  • Huntington Beach Union High School District Police Department
  • Inglewood Unified School District Police Department
  • Kern High School District Police Department
  •  Los Angeles School Police Department
  • Long Beach Unified School District School Safety Department
  •  Montebello Unified School District Police Department
  • Norwalk-La Mirada Unified School District School Safety Department
  • Oakland Unified School District Police Department
  • San Bernardino City Unified School District Police Department
  • San Diego City Schools Police Department
  • Santa Ana Unified School District Police Department
  • Stockton Unified School District Police Department
  • Twin Rivers Police Department
  • Victor Valley Union High School District Police Department
  • West Contra Costa Unified School District Police Department
  •  Special district agencies
  • Apple Valley Unified School District Police Department
  • Baldwin Park Unified School District Police Department
  • Clovis Unified School District Police Department
  • Compton Unified School District Police Department
  • Elk Grove School District Police Department
  • Fontana School District Police Department
  • Glendale College District Police Department
  • Hesperia School District Police Department

Special district agencies

San Diego Police officers confer during the October 2007 California wildfires.

  • Bay Area Rapid Transit Police Department
  • Bear Valley Police Department (Bear Valley Community Services District)
  • Bethel Island Municipal Improvement District (BIMID)
  • Broadmoor Police Protection District
  • Burbank-Glendale-Pasadena Airport Authority Police
  • Capistrano Bay Police Department (Capistrano Bay Community Services District)
  • Central Marin Police Authority
  • California Exposition & State Fair Police (Cal Expo Police)
  • East Bay Regional Park District Police Department
  • Exposition Park Department of Public Safety
  • Kensington Police Protection and Community Services District
  • Kern County Airport Police
  • Lake Shastina Police Department (Lake Shastina C.S.D.)
  • Long Beach Harbor Patrol
  • Long Beach Park Rangers
  • Los Angeles World Airports Police Division
  • Los Angeles Department of Recreation and Parks, Park Ranger Division
  • Port of Los Angeles Police Division
  • Los Angeles Society for the Prevention of Cruelty to Animals Law Enforcement Division
  • Midpeninsula Regional Open Space District Ranger Division
  • Montebello Park Rangers
  • Monterey County Park Rangers
  • Monterey Peninsula Airport Police
  • Metropolitan Transit System Police Departmen
  • Napa Valley Railroad Police Department
  • Port of Stockton Police
  • Sacramento Regional Transit Police
  • San Diego Harbor Police (San Diego Unified Port District)
  • San Diego Humane Society and SPCA Law Enforcement / Investigations Division
  • San Francisco Park Patrol
  • Santa Ana Park Rangers
  • Santa Cruz Harbor Patrol
  • Stallion Springs Police
  • Town of Discovery Bay Community Services District (CSD)

Federal law enforcement agencies in California

A San Francisco Police Department cruiser, K-9 division, 2008.

  • United States Park Police
  • National Park Service Ranger (Law Enforcement)
  • United States Forest Service (Law Enforcement)
  • United States Mint Police
  • Federal Bureau of Prisons
  • Federal Protective Service
  • Federal Reserve Bank Police Department
  • United States Fish and Wildlife Service
  • Bureau of Indian Affairs Police
  • Office of the United States Marshal for the Northern District of California
  • Office of the United States Marshal for the Eastern District of California
  • Office of the United States Marshal for the Central District of California
  • Office of the United States Marshal for the Southern District of California
  • United States Coast Guard
  • United States Secret Service
  • United States Customs and Border Protection
  • United States Immigration and Customs Enforcement
  • United States Naval Criminal Investigative Service
  • United States Veterans Affairs Police
  • United States Army Military Police Corps (Civilian/Uniformed)
  • United States Air Force Security Forces (Civilian/Uniformed)
  • Commander, Navy Region Southwest Police (Civilian/Uniformed)
  • United States Postal Service (Special Agents/OIG)
  • Federal Bureau of Investigation FBI
    • Federal Bureau of Investigation Police
    • Department of Defense Police
      • Defense Logistics Agency Police
      • Federal law enforcement in the United States

Defunct agencies

  • California State Police
  • California State Rangers
  • Alviso Police Department merged into San Jose Police Department
  • Avalon Police Department Disbanded – services now provided by the Los Angeles Sheriff’s Department
  • Compton Police Department
  • Dorris Police Department Disbanded – services contracted with Siskiyou County Sheriff’s Office
  • Dunsmuir Police Department Disbanded – Services contracted with Siskiyou County Sheriff’s Office
  • Ft. Jones Police Department Disbanded – Services provided by Siskiyou County Sheriff’s Office
  • Half Moon Bay Police Department Disbanded – Services contracted with San Mateo County Sheriff’s Office
  • Holtville Police Department Disbanded – Merged into Imperial County Sheriffs’ Office
  • Hoopa Valley Tribal Police Department Disbanded – Merged into Humboldt County Sheriff’s Office
  • Housing Authority City of Los Angeles Police Department (disbanded on 12/31/03, area serviced by Los Angeles Police Department)
  • Imperial Beach Police Department Disbanded – Merged into San Diego County Sheriff’s Department 1982
  • Isleton Police Department (Disbanded in 2012, area serviced by Sacramento County Sheriff’s Department)
  • Los Angeles General Services Police now the Los Angeles Police Department (LAPD) Security Services Division
  • Los Angeles Community College District Police Department merged into LASD
  • Los Angeles County Office of Public Safety
  • Maricopa Police Department Disbanded – Merged into Kern County Sheriff’s Office
  • Maywood-Cudahy Police Department
  • Millbrae Police Department Disbanded – Services contracted with San Mateo County Sheriff’s Office
  • Montague Police Department Disbanded – Services provided by Siskiyou County Sheriff’s Office
  • Santa Clara County Transit Police
  • San Anselmo Police Department
  • San Carlos Police Department Disbanded – Services contracted with San Mateo County Sheriff’s Office
  • San Juan Bautista Police Department
  • San Jose Unified School District Police
  • Southern California Rapid Transit District Police Department
  • Stanton Police Department Disbanded – Merged into Orange County Sheriff’s Department in February, 1988.
  • Trinidad Police Department (Disbanded in 2010
  • Twin Cities Police Authority now known as Central Marin Police Authority
  • Willows Police Department disbanded as of 7/1/17. Services provided by Glenn County Sheriff’s Office

Private Investigations Agencies in CA

Here you can find private investitagions agencies in California for providng Investigations services However, Najor Investigations Firm is one of best Private Investigation Firm that gets results.

  • Armando Zatarain Investigations
  • Corinthian Group
  • Doerner Investigations
  • Empire Pacific Investigative Service
  • G.E. Investigation
  • Groves Investigations
  • Hodson P.I. Investigations
  • Hover View Investigations
  • J R Investigations
  • Kay and Associates Investigations
  • MCM Investigations
  • Parrent Smith Investigations
  • Strategic Support Investigations
  • Sunset Blvd. Investigations, Inc.
  • Super Eye Investigations
  • Tristar Investigation
  • Wolfe’s Investigations

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