Police are continuing to search for a man after a shop worker was assaulted by a customer.
Shortly before 3pm on December 20 2013 the man tried to return an item but was refused by staff as it seemed to have been worn.
The man then punched the female employee on the arm and left the store.
Officers would like to speak to the man shown in the CCTV image in connection with the incident at Boundary Mill Store in Gonerby Moor, Grantham.
He is described as being around 5ft 6in in height, of slim build, aged in his late 50s, with short blond hair, clean shaven, and wearing a red bomber-style jacket with cream or beige trousers.