Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 3 Jan 1997 | Welwyn Hatfield | 2 | 1 | Serious |
| Fri 10 Jan 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 10 Jan 1997 | East Hertfordshire | 2 | 7 | Slight |
| Fri 10 Jan 1997 | East Hertfordshire | 2 | 7 | Slight |
| Mon 20 Jan 1997 | East Hertfordshire | 3 | 2 | Slight |
| Fri 25 Apr 1997 | East Hertfordshire | 1 | 1 | Slight |
| Tue 20 May 1997 | East Hertfordshire | 2 | 1 | Slight |
| Fri 23 May 1997 | East Hertfordshire | 2 | 2 | Slight |
| Fri 23 May 1997 | East Hertfordshire | 2 | 2 | Slight |
| Sat 26 Jul 1997 | East Hertfordshire | 4 | 2 | Slight |
| Fri 8 Aug 1997 | Welwyn Hatfield | 1 | 2 | Slight |
| Mon 15 Sep 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 15 Sep 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 30 Sep 1997 | East Hertfordshire | 1 | 1 | Slight |
| Mon 13 Oct 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 29 Oct 1997 | East Hertfordshire | 2 | 1 | Slight |
| Thu 6 Nov 1997 | East Hertfordshire | 2 | 2 | Slight |
| Tue 11 Nov 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 20 Nov 1997 | Welwyn Hatfield | 3 | 4 | Serious |
| Thu 20 Nov 1997 | East Hertfordshire | 2 | 2 | Slight |
| Sat 22 Nov 1997 | East Hertfordshire | 1 | 1 | Slight |