There have been 175 unsolved murders in Merseyside over the last 91 years.
All the cases, which date back to 1931, are all kept on file with officers never losing hope that they might catch the people responsible. The full list (which can be viewed below) starts with the murder of Julia Wallace which has been described as Liverpool's 'impossible' murder.
Known as "The Locked Room Murder" detectives have been baffled by the case which is so complex the case has had no breakthroughs 90 years later. While many of the crimes go back decades, others are far more recent involving ongoing investigations as opposed to cold case files.
