Greater Manchester Police have said they made "exhaustive attempts" to establish if a letter allegedly sent by Moors murderer Ian Brady to his mental health advocate Jackie Powell, would have helped assist them in finding the remains of one of his victims.
Martin Bottomley, head of investigative review in Greater Manchester Police's major and cold case crime unit, said:
As soon as we were made aware of the existence of this alleged letter, we made exhaustive attempts to obtain it to establish whether or not its contents would assist us in finding Keith [Bennett's] body.
However, despite seizing numerous documents and a search of Brady's cell, no such letter has been recovered.
That in itself does not prove or disprove the letter's existence. It might have been destroyed, it might be hidden elsewhere, it may be in someone else's possession, or it may simply never have existed in the first place and this has been yet more mind games by Brady.
More top news
Labour's billboard posters during the general election campaign will focus on 'issues not personalities', the party's strategist has said.
Scientists find a cluster of spinal neurons integrate sensory data and unconsciously adjust muscles to maintain balance and avoid slipping.
Billionaire businessman Stefano Pessina has said the Labour leader's economic plans are "not helpful for business or the country."