I received a red light camera ticket. In the picture, you see an ambulance in front of me with flashing lights. I had moved to alleviate the traffic behind me for the emergency vehicles coming behind it.
Is this a possible defense, if so, does anyone know any good case law to justify this position?
So, unfortunately, while your intentions may have been noble, the law really isn't on your side. There is no defense of due diligence and you won't be excused for necessity.
As previously mentioned, more than likely, the fine will be substantially lowered. You COULD try to go to trial, but the hands of the court will be tied. Besides, as previously stated, the picture only shows an ambulance AHEAD of you; not behind you. You likely have no proof to establish that other emergency vehicles were behind you, which would almost certainly be needed for the JP to hold that it was a 'necessity'.
Considering this is red light camera ticket that was sent to owner of vehicle with no insurance implications.