Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 20 Feb 1986 | St. Albans | 2 | 1 | Slight |
| Sat 1 Mar 1986 | North Hertfordshire | 3 | 1 | Serious |
| Mon 17 Mar 1986 | St. Albans | 2 | 1 | Slight |
| Wed 19 Mar 1986 | St. Albans | 1 | 1 | Slight |
| Sat 19 Apr 1986 | North Hertfordshire | 2 | 2 | Slight |
| Tue 22 Apr 1986 | St. Albans | 1 | 1 | Slight |
| Thu 5 Jun 1986 | St. Albans | 3 | 1 | Slight |
| Tue 30 Sep 1986 | St. Albans | 1 | 3 | Slight |
| Thu 2 Oct 1986 | St. Albans | 2 | 1 | Slight |
| Sat 4 Oct 1986 | St. Albans | 2 | 1 | Serious |
| Fri 31 Oct 1986 | St. Albans | 3 | 1 | Slight |
| Fri 28 Nov 1986 | St. Albans | 1 | 1 | Serious |