Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 31 Jan 2012 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 2 Feb 2012 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 11 Feb 2012 | Broxbourne | 2 | 1 | Slight |
| Sat 11 Feb 2012 | Broxbourne | 2 | 1 | Slight |
| Mon 12 Mar 2012 | Broxbourne | 4 | 1 | Slight |
| Tue 3 Apr 2012 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 6 Apr 2012 | Broxbourne | 1 | 1 | Slight |
| Mon 9 Apr 2012 | Welwyn Hatfield | 2 | 4 | Serious |
| Fri 13 Apr 2012 | Broxbourne | 1 | 1 | Slight |
| Thu 19 Apr 2012 | Broxbourne | 3 | 1 | Slight |
| Wed 9 May 2012 | Hertsmere | 2 | 1 | Serious |
| Wed 9 May 2012 | Broxbourne | 2 | 2 | Serious |
| Thu 14 Jun 2012 | Broxbourne | 2 | 2 | Serious |
| Thu 19 Jul 2012 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 23 Jul 2012 | Broxbourne | 3 | 2 | Slight |
| Wed 25 Jul 2012 | Broxbourne | 2 | 1 | Slight |
| Sat 28 Jul 2012 | Hertsmere | 1 | 1 | Slight |
| Sat 11 Aug 2012 | Welwyn Hatfield | 1 | 1 | Slight |
| Tue 4 Sep 2012 | Broxbourne | 3 | 1 | Slight |
| Sun 9 Sep 2012 | Welwyn Hatfield | 2 | 5 | Slight |
| Sun 9 Sep 2012 | Welwyn Hatfield | 2 | 5 | Slight |
| Mon 10 Sep 2012 | Broxbourne | 2 | 1 | Slight |
| Tue 11 Sep 2012 | Broxbourne | 2 | 1 | Slight |
| Fri 28 Sep 2012 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 17 Oct 2012 | Broxbourne | 2 | 2 | Slight |
| Sun 28 Oct 2012 | Broxbourne | 2 | 1 | Slight |
| Tue 20 Nov 2012 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 28 Dec 2012 | Broxbourne | 2 | 1 | Serious |