On the night of Friday, 1 August 1986, Diane had been working at the Wellington public house in Bebington. She had left work at 11.45pm in her blue Fiat van, but on her way home the van ran out of petrol on Borough Road. Diane got out of the van and was seen by several witnesses at the time walking along Borough Road between midnight and 12.20am on the Saturday morning.

Twelve hours later, on 2 August, Diane’s body was discovered by a member of the public in an alleyway off Borough Road. Diane had been sexually assaulted and brutally murdered.

On 17 August 1986 property belonging to Diane was recovered on Bidston Hill. The investigation team at the time subsequently identified witnesses who had seen a small fire, at the location where the property was found, on Sunday, 3 August, and had witnessed a man running from the scene.

Diane’s murder sent shockwaves through Birkenhead when it happened, and anyone who lived in the area at the time and has any information which could help police with their inquiries, is asked to come forward.

If you were in the area at the time and saw someone acting suspiciously, let us know. The person can be traced, and a DNA sample requested from them, or a relative of theirs if they have perhaps passed away, or they have emigrated to another country.