Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 15 Jan 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 14 Feb 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 27 Feb 1984 | Welwyn Hatfield | 1 | 1 | Slight |
| Tue 13 Mar 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 13 Mar 1984 | Welwyn Hatfield | 2 | 1 | Serious |
| Wed 28 Mar 1984 | Welwyn Hatfield | 1 | 1 | Serious |
| Thu 3 May 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 11 May 1984 | Welwyn Hatfield | 1 | 1 | Slight |
| Tue 22 May 1984 | East Hertfordshire | 2 | 3 | Slight |
| Mon 4 Jun 1984 | Welwyn Hatfield | 2 | 2 | Serious |
| Fri 8 Jun 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 7 Jul 1984 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 18 Jul 1984 | East Hertfordshire | 2 | 5 | Slight |
| Sat 4 Aug 1984 | Welwyn Hatfield | 1 | 2 | Slight |
| Thu 9 Aug 1984 | East Hertfordshire | 1 | 1 | Serious |
| Sat 13 Oct 1984 | Welwyn Hatfield | 1 | 1 | Slight |
| Thu 18 Oct 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 24 Oct 1984 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 26 Nov 1984 | Welwyn Hatfield | 2 | 2 | Slight |
| Fri 30 Nov 1984 | Welwyn Hatfield | 2 | 1 | Serious |