CRIMINALS in Worcester got a nasty shock when they were pulled over at a police stop-check.

Friday's operation used one of the latest pieces of equipment available to police.

Using the Automatic Number Plate Recognition (ANPR) system, officers were able to identify and stop only those cars registered on the national police database.

Four people were arrested and charged following the check, staged on the A38 at Martin Hussingtree, near Worcester.

"Hopefully the stop-check will remind criminals that we know where they are and what they're doing," said Sergeant John McKay, of Droitwich police.

"Keeping tabs on them helps secure information that can lead to the arrest of drug dealers and thieves, but it also helps disrupt crime by deterring would-be criminals."

More than 40 people were stopped during the four-hour Operation Golf, one of a series of stop-checks which have taken place across the south Worcestershire area.

Those arrested were charged with offences including possession of drugs, possession with intent to supply drugs, disqualified driving and an outstanding arrest warrant.

The ANPR system means only cars the police want to "nick" are stopped.

"This way, only drivers with something to hide are stopped," added Sgt McKay.