Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 15 Jan 2003 | Three Rivers | 2 | 2 | Slight |
| Fri 17 Jan 2003 | Watford | 2 | 2 | Slight |
| Fri 17 Jan 2003 | Watford | 2 | 2 | Slight |
| Thu 20 Feb 2003 | Three Rivers | 1 | 1 | Slight |
| Wed 5 Mar 2003 | Three Rivers | 1 | 1 | Slight |
| Fri 21 Mar 2003 | Watford | 2 | 1 | Slight |
| Thu 10 Apr 2003 | Three Rivers | 1 | 1 | Serious |
| Thu 1 May 2003 | Three Rivers | 2 | 2 | Slight |
| Tue 6 May 2003 | Watford | 3 | 1 | Slight |
| Fri 9 May 2003 | Watford | 2 | 1 | Slight |
| Sat 10 May 2003 | Watford | 4 | 5 | Slight |
| Sat 7 Jun 2003 | Watford | 2 | 2 | Slight |
| Mon 23 Jun 2003 | Watford | 2 | 1 | Slight |
| Thu 10 Jul 2003 | Watford | 2 | 1 | Slight |
| Mon 14 Jul 2003 | Watford | 2 | 1 | Slight |
| Wed 16 Jul 2003 | Watford | 2 | 1 | Slight |
| Wed 16 Jul 2003 | Watford | 2 | 2 | Slight |
| Thu 28 Aug 2003 | Watford | 2 | 2 | Slight |
| Sat 6 Sep 2003 | Three Rivers | 2 | 1 | Serious |
| Sun 7 Sep 2003 | Watford | 2 | 1 | Slight |
| Sun 5 Oct 2003 | Watford | 2 | 1 | Slight |
| Tue 21 Oct 2003 | Watford | 1 | 1 | Slight |
| Fri 24 Oct 2003 | Watford | 2 | 1 | Slight |
| Fri 7 Nov 2003 | Watford | 1 | 1 | Slight |
| Sun 9 Nov 2003 | Watford | 2 | 1 | Slight |
| Sat 22 Nov 2003 | Three Rivers | 2 | 1 | Slight |
| Wed 26 Nov 2003 | Watford | 2 | 1 | Slight |
| Sun 7 Dec 2003 | Watford | 1 | 1 | Slight |