Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 8 Jan 2003 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 27 Jan 2003 | Broxbourne | 2 | 1 | Slight |
| Thu 30 Jan 2003 | Broxbourne | 2 | 1 | Slight |
| Fri 14 Mar 2003 | Welwyn Hatfield | 2 | 1 | Serious |
| Mon 24 Mar 2003 | Broxbourne | 2 | 1 | Slight |
| Sat 5 Apr 2003 | Broxbourne | 1 | 1 | Slight |
| Thu 17 Apr 2003 | Hertsmere | 2 | 1 | Slight |
| Fri 18 Apr 2003 | Welwyn Hatfield | 2 | 2 | Slight |
| Thu 1 May 2003 | Welwyn Hatfield | 2 | 2 | Slight |
| Thu 1 May 2003 | Broxbourne | 2 | 1 | Slight |
| Wed 18 Jun 2003 | Broxbourne | 2 | 1 | Slight |
| Fri 27 Jun 2003 | Broxbourne | 4 | 2 | Slight |
| Sun 13 Jul 2003 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 9 Aug 2003 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 24 Aug 2003 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 27 Aug 2003 | Hertsmere | 4 | 4 | Serious |
| Thu 28 Aug 2003 | Broxbourne | 1 | 1 | Slight |
| Wed 17 Sep 2003 | Hertsmere | 1 | 1 | Slight |
| Mon 22 Sep 2003 | Hertsmere | 2 | 1 | Slight |
| Wed 24 Sep 2003 | Broxbourne | 3 | 1 | Slight |
| Wed 1 Oct 2003 | Hertsmere | 1 | 2 | Serious |
| Tue 7 Oct 2003 | Broxbourne | 3 | 3 | Slight |
| Tue 7 Oct 2003 | Broxbourne | 2 | 1 | Slight |
| Wed 8 Oct 2003 | Hertsmere | 3 | 2 | Slight |
| Wed 8 Oct 2003 | Hertsmere | 3 | 2 | Slight |
| Thu 9 Oct 2003 | Broxbourne | 2 | 1 | Slight |
| Fri 10 Oct 2003 | Hertsmere | 3 | 1 | Slight |
| Tue 14 Oct 2003 | Broxbourne | 1 | 1 | Slight |
| Sun 2 Nov 2003 | Hertsmere | 2 | 2 | Slight |
| Tue 4 Nov 2003 | Welwyn Hatfield | 2 | 1 | Serious |
| Fri 21 Nov 2003 | Broxbourne | 3 | 1 | Serious |
| Fri 21 Nov 2003 | Broxbourne | 3 | 1 | Slight |
| Fri 21 Nov 2003 | Broxbourne | 2 | 1 | Slight |
| Sun 7 Dec 2003 | Broxbourne | 1 | 1 | Slight |
| Tue 16 Dec 2003 | Broxbourne | 1 | 1 | Serious |
| Thu 18 Dec 2003 | Broxbourne | 2 | 1 | Slight |