Police Ombudsman investigators appeal for information about a fatal car crash which claimed the life of a young woman in the Claudy area on 11 December 2011.
The collision resulted in the death of Claire Kelly, who was a rear seat passenger in a burgundy-coloured Renault Clio.
Prior to the road traffic collision the Clio was observed being driven in the Feeney area.
Police Ombudsman investigators would like to speak to anyone who may have seen this car and/or an unmarked, dark-coloured, Skoda Octavia police car in Feeney or Claudy between approximately 01.20 am and 01.35 am on Sunday, 11 December 2011.
If you saw either of these cars or have any information which you feel may assist the Police Ombudsman's investigation, please call the Police Ombudsman free-phone witness appeal line on 0800 032 7880