| Abbreviation | Definition |
|---|---|
| HRPS | Halton Regional Police Service |
| HRSA | High Risk of Suicide Attempt |
| HRSSC | Human Resources Strategy Sub-Committee |
| HRT | Hostage Rescue Team |
| HSC | Health and Safety Commission |
| HSK | Heavy Secret Killers |
| HSK | Hesh Skate Krew |
| HTLAP | High-Throughput Liquid-Absorption Preconcentrator |
| HTO | Habitual Traffic Offender |
| HTO | Highway Transportation Officer |
| HU | Harbor Unit |
| HUPD | Hampton University Police Department |
| HUPD | Harvard University Police Department |
| HWY | Hispanics With Young |
| I/F/O | In Front Of |
| IAB | Internal Affairs Bureau |
| IACOP | Indiana Association of Chiefs of Police |
| IACP | Illinois Association of Chiefs of Police |
| IACP | Indiana Association of Chiefs of Police |
| IAD | Internal Affairs Division |