| Abbreviation | Definition |
|---|---|
| MIT | Murderous Intents and Tendencies |
| MLRO | Money Laundering Reporting Officer |
| MNPD | Metropolitan Nashville Police Department |
| MNRP | Maryland Natural Resource Police |
| MNRP | Maryland Natural Resources Police |
| MNTF | Manhattan North Task Force (NYPD) |
| MNU | Maiden Name Unknown |
| MOAB | Mother Of All Barbituates |
| MOB | Member Of Bloods |
| MOD | Mode Of Death |
| MoDP | Ministry of Defence Police |
| MOE | Method Of Entry |
| MOF | Member Of Force |
| MOM | Motive, Opportunity, and Means |
| MOPI | Management Of Police Information |
| MOPOL | MObile POLice |
| MOPP | Manual Of Policy and Procedures |
| MOS | Man On Street |
| MOS | Member Of Service |
| MOSC | Management Of Serious Crime |