Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 4 Jan 2007 | North Hertfordshire | 2 | 1 | Serious |
| Sun 7 Jan 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sat 20 Jan 2007 | North Hertfordshire | 2 | 2 | Slight |
| Sat 20 Jan 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sat 3 Feb 2007 | North Hertfordshire | 2 | 1 | Slight |
| Fri 9 Feb 2007 | North Hertfordshire | 2 | 1 | Slight |
| Tue 13 Feb 2007 | North Hertfordshire | 2 | 2 | Slight |
| Sun 18 Feb 2007 | North Hertfordshire | 2 | 1 | Slight |
| Thu 22 Feb 2007 | North Hertfordshire | 1 | 1 | Slight |
| Fri 2 Mar 2007 | North Hertfordshire | 2 | 1 | Slight |
| Fri 2 Mar 2007 | North Hertfordshire | 4 | 2 | Serious |
| Sun 4 Mar 2007 | North Hertfordshire | 1 | 1 | Slight |
| Tue 13 Mar 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sun 18 Mar 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sat 31 Mar 2007 | North Hertfordshire | 3 | 1 | Slight |
| Sat 7 Apr 2007 | North Hertfordshire | 2 | 1 | Slight |
| Mon 30 Apr 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sat 5 May 2007 | North Hertfordshire | 1 | 1 | Slight |
| Wed 23 May 2007 | North Hertfordshire | 2 | 2 | Slight |
| Wed 6 Jun 2007 | North Hertfordshire | 2 | 1 | Slight |
| Wed 20 Jun 2007 | North Hertfordshire | 2 | 2 | Slight |
| Mon 25 Jun 2007 | North Hertfordshire | 2 | 2 | Slight |
| Fri 29 Jun 2007 | North Hertfordshire | 1 | 1 | Slight |
| Sat 14 Jul 2007 | North Hertfordshire | 1 | 1 | Slight |
| Fri 20 Jul 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sat 28 Jul 2007 | North Hertfordshire | 2 | 1 | Slight |
| Tue 31 Jul 2007 | North Hertfordshire | 1 | 1 | Serious |
| Tue 7 Aug 2007 | North Hertfordshire | 2 | 3 | Serious |
| Thu 9 Aug 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sun 12 Aug 2007 | North Hertfordshire | 1 | 1 | Slight |
| Mon 13 Aug 2007 | North Hertfordshire | 2 | 1 | Slight |
| Sun 26 Aug 2007 | North Hertfordshire | 2 | 1 | Slight |
| Tue 28 Aug 2007 | North Hertfordshire | 1 | 1 | Slight |
| Thu 30 Aug 2007 | North Hertfordshire | 1 | 1 | Slight |
| Mon 10 Sep 2007 | North Hertfordshire | 3 | 1 | Slight |
| Mon 17 Sep 2007 | North Hertfordshire | 2 | 1 | Slight |
| Fri 21 Sep 2007 | North Hertfordshire | 2 | 2 | Slight |
| Fri 21 Sep 2007 | North Hertfordshire | 2 | 2 | Slight |
| Tue 25 Sep 2007 | Welwyn Hatfield | 2 | 1 | Serious |
| Wed 26 Sep 2007 | North Hertfordshire | 2 | 2 | Serious |
| Wed 24 Oct 2007 | North Hertfordshire | 2 | 2 | Serious |
| Thu 8 Nov 2007 | North Hertfordshire | 1 | 1 | Slight |
| Tue 27 Nov 2007 | North Hertfordshire | 2 | 1 | Slight |
| Thu 29 Nov 2007 | North Hertfordshire | 2 | 1 | Slight |
| Thu 29 Nov 2007 | North Hertfordshire | 2 | 2 | Slight |
| Wed 5 Dec 2007 | North Hertfordshire | 2 | 1 | Serious |
| Fri 7 Dec 2007 | North Hertfordshire | 1 | 1 | Slight |
| Sat 8 Dec 2007 | North Hertfordshire | 2 | 3 | Slight |
| Wed 12 Dec 2007 | North Hertfordshire | 2 | 1 | Serious |
| Thu 13 Dec 2007 | North Hertfordshire | 2 | 1 | Slight |
| Thu 13 Dec 2007 | North Hertfordshire | 2 | 3 | Serious |
| Thu 27 Dec 2007 | North Hertfordshire | 1 | 1 | Slight |