Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 8 Jan 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 20 Jan 2004 | East Hertfordshire | 4 | 1 | Slight |
| Mon 23 Feb 2004 | Welwyn Hatfield | 1 | 1 | Serious |
| Mon 29 Mar 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 8 Apr 2004 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 14 Apr 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 29 Apr 2004 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 5 May 2004 | Welwyn Hatfield | 3 | 1 | Slight |
| Fri 14 May 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 7 Aug 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 10 Aug 2004 | Welwyn Hatfield | 1 | 1 | Serious |
| Tue 31 Aug 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 31 Aug 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 7 Sep 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 16 Sep 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 17 Sep 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 17 Sep 2004 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 21 Sep 2004 | Welwyn Hatfield | 3 | 1 | Slight |
| Wed 20 Oct 2004 | Welwyn Hatfield | 2 | 2 | Slight |
| Mon 8 Nov 2004 | Welwyn Hatfield | 2 | 1 | Slight |