Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 16 Feb 1986 | Stevenage | 1 | 3 | Slight |
| Wed 10 Sep 1986 | East Hertfordshire | 3 | 1 | Serious |
| Tue 25 Nov 1986 | Stevenage | 1 | 1 | Slight |
| Wed 3 Dec 1986 | East Hertfordshire | 2 | 1 | Slight |
| Sat 20 Dec 1986 | East Hertfordshire | 2 | 1 | Slight |