| Abbreviation | Definition |
|---|---|
| IIMU | Incident and Intelligence Management Unit |
| IIP | Investors In People |
| IIRC | Image Identity Review Committee |
| IJFE | International Journal of Forensic Engineering |
| IKA | Import Killers Association |
| ILEC | Integrated Law Enforcement Council |
| ILP | Intelligence-Led Policing |
| IMC | Incident Management Center |
| IMDG | International Maritime Dangerous Goods |
| IMPACS | Implementation Agency for Crime and Security (CARICOM) |
| IMPACT | In Merseyside Police And Churches Together |
| IMPACT | Inclusive Model of Partnership Against Car Theft |
| IMPACT | Integrated Municipal Police Anti Crime Teams |
| IMPACT | Integrity Management Police Anti Corruption Team |
| IMPACT | Issues Molding Police And Community Together |
| IMPD | Indianapolis Metropolitan Police Department |
| IMSSC | Information Management Strategy Sub-Committee |
| INCH | Intolerable Narcotics Changing Hands |
| INSP | Inspector |
| INTERPOL | International Police |