Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 14 Jan 2004 | Hertsmere | 1 | 1 | Slight |
| Sun 18 Jan 2004 | Hertsmere | 1 | 1 | Slight |
| Mon 9 Feb 2004 | Hertsmere | 1 | 2 | Fatal |
| Sat 6 Mar 2004 | Hertsmere | 1 | 1 | Slight |
| Sat 6 Mar 2004 | Hertsmere | 1 | 1 | Slight |
| Tue 27 Apr 2004 | Hertsmere | 2 | 1 | Slight |
| Thu 29 Apr 2004 | Hertsmere | 3 | 1 | Slight |
| Fri 7 May 2004 | Hertsmere | 2 | 1 | Serious |
| Fri 7 May 2004 | Hertsmere | 2 | 1 | Serious |
| Thu 8 Jul 2004 | Hertsmere | 2 | 1 | Slight |
| Tue 7 Dec 2004 | Hertsmere | 1 | 1 | Slight |
| Wed 22 Dec 2004 | Hertsmere | 2 | 1 | Slight |