Ontario Police Departments
- Ontario Provincial Police
- Amherstburg Police Service
- Aylmer Police
- Barrie Police Service
- Belleville Police Service
- Brantford Police Service
- Brockville Police Service
- Chatham-Kent Police Service
- Cobourg Police Service
- Cornwall Community Police Service
- Deep River Police Service
- Dryden Police Service
- Durham Regional Police Service
- Espanola Police Service
- Gananoque Police Service
- Greater Sudbury Police Service
- Guelph Police Service
- Halton Regional Police Service
- Hamilton Police Service
- Hanover Police Service
- Kawartha Lakes Police Service
- Kingston Police
- LaSalle Police Service
- London Police Service
- Midland Police Service
- Niagara Regional Police Service
- Niagara Parks Police
- North Bay Police Service
- Orangeville Police Service
- Ottawa Police Service
- Owen Sound Police Service
- Peel Regional Police
- Peterborough Police Service
- Port Hope Police Service
- St. Thomas Police Service
- Sarnia Police Service
- Saugeen Shores Police Service
- Sault Ste. Marie Police Service
- Shelburne Police Service
- Smiths Falls Police Service
- South Simcoe Police Service
- Special Investigations Unit
- Stratford Police Service
- Strathroy-Caradoc Police Service
- Thunder Bay Police Service
- Timmins Police Service
- Toronto Police Service
- Waterloo Regional Police Service
- West Grey Police Service
- West Nipissing Police Service
- Windsor Police Service
- Wingham Police Service
- Woodstock Police Service
- York Regional Police
- Ontario Ministry of Environment Enforcement
- Ontario Ministry of Health and Long-Term Care, Tobacco Enforcement Officers (through Public Health Units)
- Ontario Ministry of Finance Enforcement
- Ontario Ministry of Natural Resources and Forestry, Conservation Officers
- Ontario Ministry of Transportation/ Motor Carrier Enforcement