Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 11 Feb 1986 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 2 Mar 1986 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 7 Mar 1986 | Welwyn Hatfield | 5 | 2 | Serious |
| Thu 21 Aug 1986 | Welwyn Hatfield | 1 | 1 | Slight |
| Sun 14 Sep 1986 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 25 Oct 1986 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 12 Nov 1986 | Welwyn Hatfield | 1 | 1 | Serious |
| Thu 20 Nov 1986 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 31 Dec 1986 | Welwyn Hatfield | 2 | 1 | Serious |