Police in Merseyside are using old patrol cars as 'scarecrows' to put off offenders in crime hotspots.
The location of the old patrol cars will change on different nights
Chief Superintendent Alan Jones, who is behind the scheme in Wirral, claimed it was proving effective.
The cars are left in areas known for drug dealing and other anti-social behaviour, with the locations being constantly changed.
But Conservative Councillor Jeff Green said he would prefer more officers to be out on the streets.
"I welcome any innovation that's going to improve community safety, but we would prefer there to be more police officers on the streets," he said.
"One of the concerns of my constituents is they very rarely see officers in the streets.
"Wirral doesn't get the number of police officers it deserves when you take into account its size."