Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 6 Jan 2004 | Hertsmere | 2 | 2 | Slight |
| Fri 9 Jan 2004 | Hertsmere | 2 | 1 | Slight |
| Sun 1 Feb 2004 | Harrow | 2 | 1 | Slight |
| Sat 7 Feb 2004 | Harrow | 2 | 1 | Serious |
| Sat 14 Feb 2004 | Brent | 2 | 1 | Slight |
| Fri 20 Feb 2004 | Harrow | 2 | 1 | Slight |
| Fri 27 Feb 2004 | Brent | 2 | 2 | Slight |
| Sat 28 Feb 2004 | Harrow | 2 | 1 | Slight |
| Wed 24 Mar 2004 | Brent | 3 | 1 | Slight |
| Fri 2 Apr 2004 | Brent | 2 | 1 | Slight |
| Mon 12 Apr 2004 | Brent | 2 | 1 | Slight |
| Sat 17 Apr 2004 | Brent | 3 | 1 | Slight |
| Mon 26 Apr 2004 | Harrow | 1 | 1 | Slight |
| Fri 30 Apr 2004 | Brent | 1 | 1 | Slight |
| Wed 5 May 2004 | Harrow | 2 | 1 | Slight |
| Thu 6 May 2004 | Harrow | 2 | 2 | Slight |
| Thu 6 May 2004 | Harrow | 2 | 2 | Slight |
| Sat 15 May 2004 | Harrow | 2 | 1 | Slight |
| Tue 18 May 2004 | Harrow | 2 | 1 | Slight |
| Fri 28 May 2004 | Brent | 2 | 2 | Serious |
| Fri 28 May 2004 | Brent | 2 | 2 | Serious |
| Sun 30 May 2004 | Harrow | 2 | 1 | Serious |
| Tue 1 Jun 2004 | Brent | 2 | 1 | Slight |
| Mon 14 Jun 2004 | Harrow | 2 | 1 | Slight |
| Sun 27 Jun 2004 | Harrow | 1 | 1 | Serious |
| Tue 6 Jul 2004 | Brent | 1 | 1 | Slight |
| Thu 8 Jul 2004 | Harrow | 2 | 2 | Slight |
| Sat 17 Jul 2004 | Harrow | 2 | 1 | Slight |
| Tue 20 Jul 2004 | Harrow | 2 | 1 | Slight |
| Mon 26 Jul 2004 | Hertsmere | 1 | 2 | Slight |
| Thu 29 Jul 2004 | Harrow | 1 | 1 | Slight |
| Mon 2 Aug 2004 | Harrow | 2 | 1 | Serious |
| Tue 3 Aug 2004 | Brent | 2 | 1 | Slight |
| Sat 7 Aug 2004 | Harrow | 2 | 2 | Slight |
| Sat 14 Aug 2004 | Harrow | 2 | 2 | Serious |
| Sat 14 Aug 2004 | Harrow | 2 | 1 | Slight |
| Sat 14 Aug 2004 | Harrow | 2 | 2 | Slight |
| Sun 29 Aug 2004 | Hertsmere | 3 | 3 | Slight |
| Thu 2 Sep 2004 | Hertsmere | 2 | 1 | Slight |
| Wed 15 Sep 2004 | Harrow | 2 | 1 | Slight |
| Sun 19 Sep 2004 | Brent | 2 | 1 | Slight |
| Wed 22 Sep 2004 | Brent | 2 | 3 | Slight |
| Sun 3 Oct 2004 | Harrow | 1 | 2 | Slight |
| Wed 6 Oct 2004 | Harrow | 1 | 1 | Slight |
| Tue 12 Oct 2004 | Harrow | 2 | 1 | Slight |
| Sun 17 Oct 2004 | Harrow | 2 | 1 | Slight |
| Sun 17 Oct 2004 | Harrow | 1 | 1 | Slight |
| Wed 20 Oct 2004 | Harrow | 2 | 1 | Serious |
| Mon 25 Oct 2004 | Hertsmere | 3 | 1 | Slight |
| Mon 25 Oct 2004 | Harrow | 2 | 1 | Slight |
| Tue 9 Nov 2004 | Harrow | 5 | 1 | Slight |
| Wed 17 Nov 2004 | Brent | 2 | 1 | Slight |
| Sat 20 Nov 2004 | Hertsmere | 2 | 1 | Slight |
| Mon 22 Nov 2004 | Brent | 2 | 1 | Slight |
| Thu 25 Nov 2004 | Brent | 2 | 1 | Slight |
| Mon 6 Dec 2004 | Watford | 1 | 1 | Slight |
| Thu 9 Dec 2004 | Brent | 2 | 1 | Slight |
| Thu 16 Dec 2004 | Brent | 1 | 1 | Slight |
| Tue 21 Dec 2004 | Harrow | 1 | 1 | Slight |