| Abbreviation | Definition |
|---|---|
| ACPD | Arlington County Police Department |
| ACPD | Atlantic City Police Department |
| ACPD | Auraria Campus Police Department |
| ACPM | Afghanistan Civil Policing Model |
| ACPO | Aboriginal Community Police Officer |
| ACPO | Association of Chief Police Officers |
| ACPORP | Association of Chief Police Officers Road Policing Committee |
| ACR | Automated Crime Recording |
| ACRJ | Albemarle County Regional Jail |
| ACS | Access Control System |
| ACT | At-risk Crime Tactics |
| ACTS | Assume (every firearm is loaded);Control (the muzzle direction at all times);Trigger finger (off tri |
| ACU | Area Command Unit |
| AD | Accidental Death |
| AD | Almost Dead |
| ADC | Adult Detention Center |
| ADCU | Alcohol and Drug Coordination Unit |
| ADFT | Advanced Digital Forensic Techniques |
| ADGP | Additional Director General of Police |
| ADP | Abu Dhabi Police |