unsolved

It was the start of a mystery that remains unsolved - the little girl's true identity is still not fully known.

Mrs Anderson said they should have been kept by the police "for evidential purposes in respect of unsolved murders, including Mr O'Hara's".

But for the moment there are still many contradictions that remain unsolved.

Madeleine's disappearance at the age of three during a family holiday in Portugal is one of the most widely reported missing child cases and remains unsolved.

In his announcement on Thursday, Sir Keir is expected to say visible policing has fallen dramatically in recent years, with 90% of crime left unsolved.