Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 6 Jan 1987 | Harrow | 3 | 4 | Serious |
| Thu 8 Jan 1987 | Harrow | 2 | 1 | Slight |
| Fri 9 Jan 1987 | Harrow | 1 | 1 | Slight |
| Mon 12 Jan 1987 | Harrow | 1 | 1 | Slight |
| Tue 20 Jan 1987 | Harrow | 2 | 1 | Slight |
| Thu 22 Jan 1987 | Harrow | 2 | 1 | Slight |
| Fri 23 Jan 1987 | Harrow | 2 | 1 | Slight |
| Sun 25 Jan 1987 | Harrow | 2 | 4 | Slight |
| Thu 5 Feb 1987 | Harrow | 1 | 1 | Slight |
| Tue 17 Feb 1987 | Harrow | 1 | 1 | Slight |
| Thu 19 Mar 1987 | Harrow | 1 | 1 | Slight |
| Fri 20 Mar 1987 | Harrow | 2 | 1 | Slight |
| Sun 22 Mar 1987 | Harrow | 1 | 1 | Slight |
| Tue 24 Mar 1987 | Harrow | 3 | 1 | Slight |
| Thu 2 Apr 1987 | Harrow | 1 | 1 | Slight |
| Fri 3 Apr 1987 | Harrow | 1 | 1 | Slight |
| Wed 8 Apr 1987 | Harrow | 2 | 2 | Serious |
| Thu 9 Apr 1987 | Harrow | 1 | 1 | Slight |
| Thu 9 Apr 1987 | Hertsmere | 2 | 1 | Slight |
| Sat 11 Apr 1987 | Harrow | 1 | 1 | Slight |
| Sat 11 Apr 1987 | Harrow | 2 | 1 | Slight |
| Thu 16 Apr 1987 | Harrow | 2 | 1 | Slight |
| Mon 27 Apr 1987 | Brent | 2 | 1 | Serious |
| Mon 27 Apr 1987 | Harrow | 2 | 1 | Slight |
| Sat 2 May 1987 | Harrow | 2 | 1 | Slight |
| Sun 3 May 1987 | Harrow | 2 | 1 | Slight |
| Fri 8 May 1987 | Harrow | 2 | 1 | Slight |
| Tue 12 May 1987 | Hertsmere | 2 | 1 | Slight |
| Sat 16 May 1987 | Harrow | 2 | 1 | Slight |
| Wed 20 May 1987 | Harrow | 2 | 1 | Slight |
| Fri 22 May 1987 | Harrow | 2 | 1 | Slight |
| Thu 28 May 1987 | Harrow | 2 | 1 | Serious |
| Wed 3 Jun 1987 | Harrow | 2 | 1 | Slight |
| Wed 3 Jun 1987 | Harrow | 2 | 1 | Slight |
| Sat 13 Jun 1987 | Harrow | 1 | 1 | Slight |
| Thu 25 Jun 1987 | Harrow | 2 | 1 | Slight |
| Fri 26 Jun 1987 | Harrow | 2 | 1 | Slight |
| Mon 29 Jun 1987 | Harrow | 1 | 1 | Slight |
| Mon 29 Jun 1987 | Harrow | 2 | 1 | Serious |
| Wed 15 Jul 1987 | Harrow | 3 | 1 | Serious |
| Fri 17 Jul 1987 | Harrow | 2 | 1 | Serious |
| Tue 21 Jul 1987 | Harrow | 1 | 1 | Slight |
| Sat 25 Jul 1987 | Harrow | 1 | 1 | Slight |
| Fri 31 Jul 1987 | Harrow | 1 | 1 | Slight |
| Sun 2 Aug 1987 | Harrow | 2 | 1 | Slight |
| Sun 2 Aug 1987 | Harrow | 1 | 1 | Serious |
| Mon 3 Aug 1987 | Hertsmere | 1 | 1 | Serious |
| Mon 3 Aug 1987 | Harrow | 1 | 1 | Slight |
| Mon 3 Aug 1987 | Harrow | 1 | 1 | Slight |
| Thu 6 Aug 1987 | Harrow | 2 | 1 | Slight |
| Thu 20 Aug 1987 | Harrow | 1 | 1 | Serious |
| Thu 20 Aug 1987 | Hertsmere | 3 | 1 | Slight |
| Fri 21 Aug 1987 | Harrow | 1 | 7 | Serious |
| Sat 22 Aug 1987 | Harrow | 1 | 2 | Slight |
| Sun 30 Aug 1987 | Harrow | 1 | 2 | Fatal |
| Sun 30 Aug 1987 | Harrow | 2 | 2 | Slight |
| Mon 31 Aug 1987 | Harrow | 2 | 1 | Serious |
| Wed 9 Sep 1987 | Harrow | 2 | 1 | Slight |
| Thu 10 Sep 1987 | Harrow | 1 | 1 | Slight |
| Sun 13 Sep 1987 | Harrow | 1 | 1 | Slight |
| Sun 13 Sep 1987 | Harrow | 2 | 1 | Slight |
| Wed 16 Sep 1987 | Harrow | 2 | 1 | Serious |
| Fri 18 Sep 1987 | Harrow | 1 | 1 | Slight |
| Fri 25 Sep 1987 | Harrow | 2 | 1 | Serious |
| Sat 3 Oct 1987 | Brent | 1 | 2 | Slight |
| Tue 20 Oct 1987 | Harrow | 2 | 1 | Slight |
| Wed 21 Oct 1987 | Harrow | 2 | 1 | Slight |
| Sun 25 Oct 1987 | Harrow | 2 | 1 | Slight |
| Fri 6 Nov 1987 | Harrow | 1 | 1 | Slight |
| Mon 9 Nov 1987 | Brent | 2 | 1 | Slight |
| Fri 13 Nov 1987 | Harrow | 1 | 2 | Serious |
| Sat 14 Nov 1987 | Harrow | 2 | 2 | Slight |
| Mon 16 Nov 1987 | Harrow | 2 | 1 | Slight |
| Mon 16 Nov 1987 | Harrow | 2 | 1 | Slight |
| Mon 23 Nov 1987 | Harrow | 2 | 1 | Serious |
| Sat 28 Nov 1987 | Harrow | 1 | 1 | Serious |
| Thu 3 Dec 1987 | Harrow | 2 | 1 | Slight |
| Sat 5 Dec 1987 | Harrow | 1 | 1 | Slight |
| Sun 6 Dec 1987 | Harrow | 1 | 1 | Slight |
| Wed 9 Dec 1987 | Harrow | 4 | 1 | Slight |
| Thu 10 Dec 1987 | Harrow | 1 | 1 | Slight |
| Sat 12 Dec 1987 | Harrow | 2 | 2 | Slight |
| Sun 13 Dec 1987 | Harrow | 2 | 1 | Slight |
| Sun 13 Dec 1987 | Harrow | 3 | 4 | Slight |
| Mon 14 Dec 1987 | Harrow | 1 | 1 | Slight |
| Tue 15 Dec 1987 | Harrow | 3 | 1 | Slight |
| Thu 17 Dec 1987 | Hertsmere | 3 | 1 | Slight |
| Thu 17 Dec 1987 | Harrow | 2 | 1 | Slight |
| Sat 19 Dec 1987 | Harrow | 2 | 1 | Slight |
| Tue 22 Dec 1987 | Harrow | 1 | 1 | Slight |
| Thu 31 Dec 1987 | Harrow | 3 | 1 | Slight |