Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 24 Jan 2003 | St. Albans | 2 | 1 | Slight |
| Fri 24 Jan 2003 | St. Albans | 2 | 1 | Slight |
| Sun 26 Jan 2003 | St. Albans | 2 | 1 | Slight |
| Sun 26 Jan 2003 | St. Albans | 2 | 1 | Slight |
| Wed 29 Jan 2003 | Watford | 2 | 1 | Slight |
| Wed 12 Feb 2003 | St. Albans | 4 | 2 | Slight |
| Tue 25 Feb 2003 | St. Albans | 2 | 2 | Slight |
| Tue 25 Feb 2003 | St. Albans | 2 | 2 | Slight |
| Mon 3 Mar 2003 | St. Albans | 2 | 1 | Slight |
| Fri 7 Mar 2003 | Three Rivers | 2 | 2 | Slight |
| Fri 21 Mar 2003 | St. Albans | 2 | 1 | Slight |
| Wed 2 Apr 2003 | St. Albans | 2 | 1 | Slight |
| Wed 2 Apr 2003 | St. Albans | 2 | 1 | Slight |
| Sat 12 Apr 2003 | Three Rivers | 1 | 1 | Slight |
| Sat 12 Apr 2003 | Three Rivers | 1 | 1 | Slight |
| Sun 13 Apr 2003 | St. Albans | 3 | 3 | Slight |
| Wed 16 Apr 2003 | St. Albans | 4 | 2 | Slight |
| Sat 3 May 2003 | Three Rivers | 1 | 1 | Serious |
| Thu 15 May 2003 | Watford | 3 | 4 | Serious |
| Thu 15 May 2003 | Watford | 3 | 4 | Serious |
| Fri 16 May 2003 | St. Albans | 2 | 1 | Slight |
| Wed 21 May 2003 | St. Albans | 2 | 1 | Slight |
| Sun 1 Jun 2003 | St. Albans | 2 | 1 | Serious |
| Sun 1 Jun 2003 | St. Albans | 2 | 1 | Serious |
| Sun 8 Jun 2003 | St. Albans | 2 | 1 | Slight |
| Sun 8 Jun 2003 | St. Albans | 2 | 1 | Slight |
| Mon 9 Jun 2003 | Watford | 2 | 1 | Serious |
| Wed 11 Jun 2003 | St. Albans | 2 | 1 | Slight |
| Wed 11 Jun 2003 | St. Albans | 2 | 1 | Slight |
| Thu 10 Jul 2003 | St. Albans | 2 | 1 | Slight |
| Sat 12 Jul 2003 | Watford | 1 | 1 | Serious |
| Sun 13 Jul 2003 | Watford | 1 | 1 | Serious |
| Sun 13 Jul 2003 | Watford | 1 | 1 | Serious |
| Mon 28 Jul 2003 | St. Albans | 2 | 3 | Slight |
| Thu 31 Jul 2003 | St. Albans | 2 | 1 | Slight |
| Wed 20 Aug 2003 | St. Albans | 2 | 2 | Slight |
| Wed 20 Aug 2003 | St. Albans | 2 | 2 | Slight |
| Wed 20 Aug 2003 | St. Albans | 2 | 1 | Slight |
| Sun 31 Aug 2003 | Watford | 2 | 2 | Slight |
| Mon 1 Sep 2003 | Watford | 2 | 1 | Slight |
| Tue 23 Sep 2003 | Watford | 2 | 1 | Serious |
| Sun 28 Sep 2003 | St. Albans | 1 | 1 | Slight |
| Sun 28 Sep 2003 | St. Albans | 1 | 1 | Slight |
| Thu 2 Oct 2003 | St. Albans | 2 | 1 | Slight |
| Thu 2 Oct 2003 | St. Albans | 2 | 1 | Slight |
| Thu 9 Oct 2003 | Watford | 2 | 3 | Slight |
| Thu 9 Oct 2003 | Watford | 2 | 3 | Slight |
| Mon 20 Oct 2003 | St. Albans | 2 | 1 | Slight |
| Sat 8 Nov 2003 | Three Rivers | 2 | 2 | Slight |
| Sat 8 Nov 2003 | Three Rivers | 2 | 2 | Slight |
| Sun 9 Nov 2003 | Watford | 1 | 1 | Slight |
| Mon 24 Nov 2003 | St. Albans | 2 | 2 | Slight |
| Fri 28 Nov 2003 | St. Albans | 2 | 1 | Slight |
| Tue 9 Dec 2003 | Three Rivers | 4 | 1 | Slight |
| Tue 9 Dec 2003 | Three Rivers | 4 | 1 | Slight |
| Tue 16 Dec 2003 | St. Albans | 2 | 1 | Slight |
| Tue 16 Dec 2003 | St. Albans | 2 | 1 | Slight |
| Fri 19 Dec 2003 | St. Albans | 2 | 1 | Serious |