Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 8 Jan 2004 | St. Albans | 2 | 1 | Slight |
| Sat 17 Jan 2004 | St. Albans | 2 | 3 | Slight |
| Wed 25 Feb 2004 | North Hertfordshire | 1 | 1 | Slight |
| Mon 10 May 2004 | St. Albans | 2 | 1 | Slight |
| Sat 15 May 2004 | St. Albans | 2 | 1 | Slight |
| Thu 20 May 2004 | St. Albans | 2 | 1 | Slight |
| Thu 27 May 2004 | St. Albans | 2 | 1 | Slight |
| Wed 16 Jun 2004 | North Hertfordshire | 2 | 1 | Slight |
| Wed 30 Jun 2004 | St. Albans | 2 | 1 | Slight |
| Fri 23 Jul 2004 | St. Albans | 1 | 2 | Serious |
| Thu 12 Aug 2004 | St. Albans | 3 | 1 | Slight |
| Sat 11 Sep 2004 | St. Albans | 2 | 1 | Slight |
| Fri 17 Sep 2004 | North Hertfordshire | 1 | 1 | Slight |
| Tue 19 Oct 2004 | St. Albans | 2 | 2 | Slight |
| Tue 26 Oct 2004 | St. Albans | 2 | 1 | Slight |
| Sat 6 Nov 2004 | St. Albans | 2 | 1 | Slight |
| Sat 6 Nov 2004 | St. Albans | 3 | 2 | Slight |
| Thu 2 Dec 2004 | St. Albans | 2 | 3 | Slight |
| Thu 9 Dec 2004 | North Hertfordshire | 2 | 2 | Slight |
| Thu 16 Dec 2004 | St. Albans | 2 | 1 | Slight |