Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 14 Jan 1998 | Harrow | 2 | 1 | Slight |
| Thu 15 Jan 1998 | Harrow | 2 | 1 | Slight |
| Thu 15 Jan 1998 | Harrow | 2 | 1 | Slight |
| Thu 22 Jan 1998 | Harrow | 2 | 1 | Slight |
| Sat 24 Jan 1998 | Harrow | 2 | 1 | Slight |
| Sat 24 Jan 1998 | Harrow | 2 | 1 | Slight |
| Fri 30 Jan 1998 | Harrow | 2 | 1 | Serious |
| Thu 5 Feb 1998 | Harrow | 2 | 1 | Serious |
| Thu 5 Feb 1998 | Harrow | 2 | 1 | Slight |
| Sat 7 Feb 1998 | Harrow | 1 | 1 | Slight |
| Wed 18 Feb 1998 | Harrow | 2 | 1 | Slight |
| Sat 28 Feb 1998 | Harrow | 2 | 2 | Slight |
| Sun 1 Mar 1998 | Harrow | 1 | 1 | Slight |
| Mon 2 Mar 1998 | Harrow | 2 | 1 | Slight |
| Tue 3 Mar 1998 | Harrow | 2 | 2 | Slight |
| Sat 7 Mar 1998 | Harrow | 1 | 1 | Slight |
| Sat 21 Mar 1998 | Harrow | 1 | 1 | Slight |
| Sat 21 Mar 1998 | Harrow | 1 | 1 | Slight |
| Thu 26 Mar 1998 | Harrow | 1 | 1 | Slight |
| Thu 26 Mar 1998 | Harrow | 1 | 1 | Slight |
| Sun 29 Mar 1998 | Harrow | 1 | 1 | Slight |
| Sun 29 Mar 1998 | Harrow | 1 | 1 | Slight |
| Wed 1 Apr 1998 | Harrow | 2 | 2 | Serious |
| Wed 1 Apr 1998 | Harrow | 2 | 2 | Serious |
| Tue 7 Apr 1998 | Harrow | 1 | 2 | Slight |
| Wed 6 May 1998 | Harrow | 2 | 1 | Slight |
| Sat 9 May 1998 | Harrow | 1 | 1 | Slight |
| Wed 13 May 1998 | Harrow | 3 | 3 | Slight |
| Fri 15 May 1998 | Harrow | 1 | 1 | Slight |
| Sat 16 May 1998 | Harrow | 1 | 1 | Slight |
| Sat 16 May 1998 | Harrow | 1 | 1 | Slight |
| Sat 23 May 1998 | Harrow | 2 | 1 | Slight |
| Sat 23 May 1998 | Harrow | 2 | 1 | Slight |
| Sun 24 May 1998 | Harrow | 2 | 1 | Slight |
| Tue 2 Jun 1998 | Harrow | 3 | 1 | Slight |
| Thu 11 Jun 1998 | Harrow | 2 | 4 | Serious |
| Mon 15 Jun 1998 | Harrow | 3 | 1 | Slight |
| Wed 17 Jun 1998 | Harrow | 2 | 1 | Slight |
| Sat 20 Jun 1998 | Harrow | 1 | 1 | Slight |
| Sat 20 Jun 1998 | Harrow | 1 | 1 | Slight |
| Sun 21 Jun 1998 | Harrow | 2 | 1 | Slight |
| Wed 24 Jun 1998 | Harrow | 3 | 1 | Slight |
| Fri 26 Jun 1998 | Harrow | 2 | 1 | Slight |
| Mon 6 Jul 1998 | Brent | 1 | 1 | Slight |
| Fri 10 Jul 1998 | Harrow | 2 | 1 | Slight |
| Sat 11 Jul 1998 | Harrow | 1 | 1 | Slight |
| Mon 13 Jul 1998 | Harrow | 1 | 1 | Slight |
| Fri 17 Jul 1998 | Harrow | 2 | 2 | Slight |
| Fri 17 Jul 1998 | Harrow | 2 | 1 | Slight |
| Mon 27 Jul 1998 | Harrow | 2 | 1 | Slight |
| Tue 4 Aug 1998 | Brent | 2 | 1 | Slight |
| Wed 5 Aug 1998 | Harrow | 1 | 1 | Serious |
| Wed 5 Aug 1998 | Harrow | 1 | 1 | Serious |
| Thu 13 Aug 1998 | Harrow | 1 | 1 | Slight |
| Tue 25 Aug 1998 | Harrow | 1 | 1 | Serious |
| Sat 29 Aug 1998 | Harrow | 2 | 1 | Slight |
| Sun 6 Sep 1998 | Harrow | 2 | 1 | Slight |
| Mon 7 Sep 1998 | Harrow | 1 | 1 | Slight |
| Tue 8 Sep 1998 | Harrow | 2 | 1 | Slight |
| Thu 24 Sep 1998 | Harrow | 1 | 1 | Slight |
| Fri 2 Oct 1998 | Harrow | 1 | 1 | Slight |
| Sun 4 Oct 1998 | Brent | 2 | 1 | Slight |
| Tue 6 Oct 1998 | Harrow | 2 | 1 | Slight |
| Wed 7 Oct 1998 | Brent | 2 | 1 | Slight |
| Mon 12 Oct 1998 | Harrow | 1 | 1 | Slight |
| Mon 12 Oct 1998 | Harrow | 2 | 1 | Slight |
| Mon 12 Oct 1998 | Harrow | 2 | 1 | Slight |
| Thu 15 Oct 1998 | Harrow | 2 | 1 | Slight |
| Sat 24 Oct 1998 | Harrow | 2 | 1 | Slight |
| Thu 5 Nov 1998 | Harrow | 3 | 1 | Serious |
| Fri 6 Nov 1998 | Harrow | 2 | 1 | Slight |
| Tue 10 Nov 1998 | Harrow | 2 | 1 | Slight |
| Thu 12 Nov 1998 | Harrow | 1 | 1 | Slight |
| Mon 23 Nov 1998 | Harrow | 2 | 1 | Slight |
| Tue 1 Dec 1998 | Harrow | 1 | 1 | Slight |
| Sat 12 Dec 1998 | Harrow | 2 | 1 | Slight |
| Thu 17 Dec 1998 | Harrow | 2 | 2 | Slight |
| Thu 17 Dec 1998 | Harrow | 2 | 2 | Slight |
| Fri 18 Dec 1998 | Harrow | 2 | 1 | Slight |
| Tue 22 Dec 1998 | Harrow | 1 | 1 | Slight |
| Fri 25 Dec 1998 | Harrow | 1 | 1 | Serious |
| Sat 26 Dec 1998 | Harrow | 1 | 1 | Slight |