Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 27 Jan 1997 | North Hertfordshire | 2 | 1 | Slight |
| Thu 13 Feb 1997 | North Hertfordshire | 2 | 1 | Slight |
| Sun 16 Feb 1997 | North Hertfordshire | 2 | 1 | Slight |
| Wed 19 Feb 1997 | North Hertfordshire | 3 | 1 | Slight |
| Mon 3 Mar 1997 | North Hertfordshire | 2 | 1 | Slight |
| Mon 17 Mar 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 7 Apr 1997 | North Hertfordshire | 1 | 2 | Slight |
| Wed 9 Apr 1997 | Welwyn Hatfield | 2 | 2 | Serious |
| Mon 21 Apr 1997 | North Hertfordshire | 2 | 2 | Slight |
| Sat 3 May 1997 | North Hertfordshire | 1 | 1 | Serious |
| Wed 14 May 1997 | North Hertfordshire | 2 | 1 | Slight |
| Thu 15 May 1997 | North Hertfordshire | 1 | 1 | Slight |
| Tue 20 May 1997 | North Hertfordshire | 2 | 1 | Slight |
| Thu 22 May 1997 | St. Albans | 2 | 1 | Slight |
| Thu 5 Jun 1997 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 5 Jun 1997 | North Hertfordshire | 2 | 1 | Slight |
| Tue 10 Jun 1997 | North Hertfordshire | 2 | 1 | Slight |
| Sun 15 Jun 1997 | North Hertfordshire | 5 | 1 | Serious |
| Wed 18 Jun 1997 | North Hertfordshire | 3 | 1 | Slight |
| Fri 20 Jun 1997 | North Hertfordshire | 2 | 1 | Slight |
| Sun 22 Jun 1997 | North Hertfordshire | 2 | 3 | Serious |
| Thu 26 Jun 1997 | North Hertfordshire | 1 | 2 | Slight |
| Fri 27 Jun 1997 | North Hertfordshire | 2 | 1 | Slight |
| Wed 16 Jul 1997 | North Hertfordshire | 3 | 2 | Fatal |
| Fri 8 Aug 1997 | North Hertfordshire | 2 | 1 | Slight |
| Sun 24 Aug 1997 | North Hertfordshire | 2 | 1 | Slight |
| Wed 3 Sep 1997 | North Hertfordshire | 1 | 1 | Slight |
| Wed 10 Sep 1997 | North Hertfordshire | 1 | 1 | Serious |
| Sun 28 Sep 1997 | North Hertfordshire | 2 | 1 | Slight |
| Tue 28 Oct 1997 | North Hertfordshire | 2 | 1 | Slight |
| Sun 9 Nov 1997 | North Hertfordshire | 2 | 1 | Slight |
| Tue 18 Nov 1997 | North Hertfordshire | 2 | 1 | Slight |
| Sun 7 Dec 1997 | North Hertfordshire | 2 | 2 | Serious |
| Fri 19 Dec 1997 | North Hertfordshire | 1 | 1 | Slight |