Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 1 Jan 2003 | Hertsmere | 5 | 1 | Slight |
| Sat 11 Jan 2003 | St. Albans | 1 | 1 | Slight |
| Fri 17 Jan 2003 | Hertsmere | 1 | 1 | Slight |
| Fri 17 Jan 2003 | Hertsmere | 3 | 1 | Slight |
| Mon 20 Jan 2003 | St. Albans | 2 | 1 | Serious |
| Wed 22 Jan 2003 | Hertsmere | 2 | 1 | Slight |
| Wed 5 Feb 2003 | Hertsmere | 2 | 1 | Slight |
| Fri 7 Feb 2003 | Hertsmere | 2 | 1 | Slight |
| Tue 11 Feb 2003 | Hertsmere | 2 | 2 | Slight |
| Sat 22 Feb 2003 | Hertsmere | 2 | 1 | Slight |
| Wed 26 Feb 2003 | Hertsmere | 3 | 3 | Slight |
| Thu 1 May 2003 | Hertsmere | 2 | 1 | Slight |
| Fri 2 May 2003 | Hertsmere | 2 | 2 | Serious |
| Fri 16 May 2003 | Hertsmere | 3 | 2 | Slight |
| Tue 20 May 2003 | Hertsmere | 2 | 1 | Slight |
| Mon 9 Jun 2003 | Hertsmere | 2 | 2 | Slight |
| Thu 3 Jul 2003 | Hertsmere | 2 | 1 | Slight |
| Thu 10 Jul 2003 | Hertsmere | 2 | 2 | Slight |
| Wed 23 Jul 2003 | Hertsmere | 2 | 1 | Slight |
| Fri 25 Jul 2003 | Hertsmere | 1 | 1 | Slight |
| Tue 29 Jul 2003 | Hertsmere | 3 | 2 | Slight |
| Sat 16 Aug 2003 | Hertsmere | 2 | 2 | Slight |
| Mon 1 Sep 2003 | Hertsmere | 3 | 1 | Fatal |
| Mon 13 Oct 2003 | Hertsmere | 1 | 2 | Slight |
| Thu 16 Oct 2003 | Hertsmere | 3 | 2 | Slight |
| Thu 16 Oct 2003 | Hertsmere | 2 | 1 | Slight |
| Fri 17 Oct 2003 | Hertsmere | 2 | 1 | Slight |
| Mon 20 Oct 2003 | Hertsmere | 1 | 1 | Slight |
| Fri 24 Oct 2003 | Hertsmere | 3 | 1 | Slight |
| Sun 26 Oct 2003 | Hertsmere | 1 | 1 | Slight |
| Mon 27 Oct 2003 | Hertsmere | 2 | 1 | Slight |
| Sun 2 Nov 2003 | Hertsmere | 1 | 1 | Slight |
| Mon 10 Nov 2003 | St. Albans | 1 | 3 | Serious |
| Sat 15 Nov 2003 | Hertsmere | 2 | 2 | Slight |
| Tue 18 Nov 2003 | Hertsmere | 1 | 1 | Slight |
| Tue 2 Dec 2003 | Hertsmere | 2 | 1 | Slight |
| Mon 22 Dec 2003 | Hertsmere | 2 | 1 | Slight |