Police are hunting a determined dairy thief after he assaulted a shop assistant during a raid on a Wolverhampton supermarket's cheese counter.
The thief walked into the Co-Op in Wellington Road, Bilston, and began to put several packets of cheese in his bag.
A shop assistant spotted the suspicious behaviour and tried to take the man's bag, but he punched the woman in the face and ran out of the store.
The assistant was not badly hurt, but she suffered cuts and bruises as a result of the attack.
Det Con Anna Lombardo, from Wolverhampton CID, said: "This is an unusual crime where what initially appears to have been a shoplifter trying to steal one or two low-value items has escalated when he has been tackled.
"The lady was understandably upset and suffered a fair amount of discomfort as a result of the assault and we want to trace the man responsible," she added.
"We urge anyone who recognises him to come forward."
The man is described as black, 5ft 9in to 6ft tall, clean shaven, in his late 20s or early 30s and he was wearing a green parka coat with the hood up.
An image of a man police would like to speak to in connection with the incident has been issued by police.
Anyone with information should call Wolverhampton CID by calling 101, or speak to Crimestoppers anonymously on 0800 555 111.