The postcards were sent to hundreds of homes in Merseyside

The specially-designed cards were sent to hundreds of addresses, urging those in breach of their bail, or wanted on warrants, to come forward.

Operation Cardsharp is the first of its kind for Merseyside Police and has been hailed as a success.

It initially ran for a month with 1,000 people coming forward and 180 arrests made so far for breach of bail.

Paul Forrester, Chief Superintendent of Operations at Merseyside Police, said: "Cardsharp was a very important operation aimed at encouraging alleged offenders wanted on warrant to surrender to their local police stations.

"Although the first phase of the operation is now drawing to a close, further initiatives are planned for the future aimed at targeting these people.

"We'd encourage anyone who has received one of these cards to go and turn themselves in to their local police station."