A £10,000 is being offered for information over a fatal road accident on the A47 in which a woman from Swaffham was killed.
Kim Utting, 52, was a passenger in a green Peugeot 406 driving eastwards at Dereham on February 14, 2013 when the accident happened.
Dereham man Andrew Scottow was driving a red Skoda Felicia the opposite way when he swerved to avoid a black car which was driving erratically.
This caused him to lose control of his vehicle and he was involved in the head-on collision with the Peugeot, which was being driven by Mrs Utting’s daughter.
She only sustained minor injuries, but Mr Scottow was seriously hurt and spent several weeks at Addenbrooke’s Hospital in Cambridge as a result.
Despite numerous appeals, the identity of the driver of the black car is still unknown, so Mr Scottow is offering a £10,000 reward for information leading to an arrest and conviction in connection with the collision.
Mr Scottow said: “Someone knows who the driver of that black car was. I want them to think about what the result of that driver’s actions has been to Mrs Utting’s family, my long term injuries, and hopefully, with a bit of incentive, they will come forward and do the right thing.”
Officers are keen to speak to anyone with further information about the two drivers of vehicles which were seen in the area at the time of the collision.
The first is the driver of a small black hatchback car which was seen driving erratically towards Norwich and failed to stop at the scene.
It overtook the green Peugeot and a white long flatbed lorry.
The second is the driver of the white lorry, which appeared to have something fluorescent on one of its wing mirrors and also failed to stop at the scene.
Anyone who witnessed the collision or the events leading up to it, should contact the Serious Collision Investigation Team on 101 (calls 15p).