| Abbreviation | Definition |
|---|---|
| PRTP | Photo Radar Turnkey Program |
| PRU | Police Resources Unit |
| PRU | Pupil Referral Unit |
| PSA | Prostitute of School Age |
| PSA | Public Service Agreement |
| PSCC | Public Safety Communications Center |
| PSD | Police Search and Destroy |
| PSD | Professional Standards Department |
| PSDB | Police Scientific Development Branch |
| PSDU | Police Service Dog Unit |
| PSF | Police Suicide Foundation |
| PSLP | Police School Liaison Programme |
| PSNI | Police Service Northern Ireland |
| PSNI | Police Service Nothing Investigated |
| PSNI | Police Service of Northern Ireland |
| PSP | PA State Police |
| PSP | Pennsylvania State Police |
| PSP | Police Service of Pakistan |
| PSPE | Pakistan Special Police Establishment |
| PSRC | Police Sports and Recreation Club |