Claims the Merseyside force withheld evidence, which could have freed a man convicted of his wife's murder, are to be investigated by Avon and Somerset Police.

Detectives here have been asked to review what had happened to a box of evidence - including the personal diaries of Paula Gilfoyle, who died while eight months pregnant in Wirral near Liverpool back in 1992.

Her husband Eddie served 18 years in prison for her murder - but has always protested his innocence.