| Abbreviation | Definition |
|---|---|
| AID | Alcohol-Induced Driving |
| AIG | Additional Inspector General |
| AIG | Assistant Inspector General |
| AIPD | Alien Intelligence Police Department |
| AIPD | Artificial Intelligence Police Department |
| AIPDM | All India Police Duty Meet |
| AIPSC | All India Police Science Congress |
| AIS(M) | Aeronautical Information Service (Military) |
| AISC | Automated Imaged Signature Comparison |
| AISD | Acted In Self Defense |
| AIU | Accident Investigation Unit |
| AK | Avtomat Kalashnikova |
| AKA | Also Known As .... |
| AKS | Aktionsstyrken |
| ALDF | Adult Local Detention Facilities |
| ALERT | Area Law Enforcement and Retailers Team |
| ALERTS | Activity, Location, EMS Response Time, and Suspects |
| ALP | Afghan Local Police |
| ALU | All Liquored Up |
| AMBER | Abducted Minors Broadcast Emergency Response |