| June 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| June 2026 | Violence and sexual offences | On or near Simon DeanDacorum 021D | Under investigation |
| June 2026 | Other crime | On or near PrisonDacorum 021A | Under investigation |
| June 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| June 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| June 2026 | Vehicle crime | On or near Newhouse RoadDacorum 021A | Investigation complete; no suspect identified |
| June 2026 | Public order | On or near Granville DeneDacorum 021A | Under investigation |
| June 2026 | Anti-social behaviour | On or near Field WayDacorum 021A | Outcome not supplied |
| May 2026 | Violence and sexual offences | On or near Dean FieldDacorum 021D | Under investigation |
| May 2026 | Other crime | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Other crime | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Other crime | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Other crime | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Violence and sexual offences | On or near PrisonDacorum 021A | Action to be taken by another organisation |
| May 2026 | Public order | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Other theft | On or near PrisonDacorum 021A | Under investigation |
| May 2026 | Drugs | On or near PrisonDacorum 021A | Awaiting court outcome |
| May 2026 | Criminal damage and arson | On or near Granville DeneDacorum 021A | Investigation complete; no suspect identified |
| May 2026 | Anti-social behaviour | On or near Newhouse RoadDacorum 021A | Outcome not supplied |