The Telegraph & Argus today takes a leading role in the hunt to catch the killer of teenage prostitute Rebecca Hall.

The T&A has teamed up with detectives investigating the murder to launch a poster campaign appealing for information on the brutal killing.

The 250 posters will be put up in police stations, shop windows, bus shelters and community halls across Bradford in the hope they will jog memories of witnesses who could hold vital information.

The posters also a feature a new photograph of the 19-year-old mother whose battered body was found in an alleyway behind a company car park in Thornton Street, Bradford, on April 26.

Detective Chief Superintendent Max McLean, pictured, of Bradford South CID, said: "We've had a disappointing response to our appeal so far.

"Rebecca's mum Angela has recommended that we use the picture you see on the posters because she considers it a very good likeness.

"We hope that the Telegraph & Argus poster campaign together with the new pictures just obtained by police will help jog people's memories.

"I'd like people to remember that Becky was a 19-year-old woman with a four-month-old baby.

"She was found naked and her clothes were found nearby. They were the same clothes she was last seen in on April 13 before she disappeared.

"Where has she been since that date? We are still uncertain as to where she has been since that Good Friday. The question is was she held somewhere or do you know of someone for whom you have suspicions.

"My appeal to the public of Bradford is to help me fill in those nine days. Was she either deliberately staying away from home or was she being held against her will?

"I would stress the confidential nature of our enquiries and that the hotline is free and confidential. Our detectives do not care under what circumstances you knew Becky, but if you did, please come forward."

T&A Editor Perry Austin-Clarke, said: "Becky's murder was a particularly nasty killing which has left a pall of fear over parts of the community. Until the killer is caught every woman must be alert to the possibility that he or she could strike again.

"People may have vital clues to who the killer is and we want to do everything we can to help the police bring in any snippet of information, no matter how small, which can help them track down the killer. We would urge anyone who saw Becky or anything suspicious during the last few days of her life to contact the police.

"You may have information which to you may seem completely innocuous but to the police it could be vital."

Anyone who has information can call the free hotline on 0800 318001.