Police are investigating a break-in at at Doyle Motors in the early hours of Sunday 14 April.
A man entered the shop at around 1:05am, while another waited outside as a lookout.
Guernsey Police would like to speak to any witnesses of anything suspicious in the area - particularly two males thought to be between 16 and 35 years old.
They are also asking islanders to report anyone who tries to sell cigarettes or stolen scratch cards directly as they may be stolen goods.
Anyone with information is asked to call 01481 222 222 and ask to speak to an officer regarding this incident or contact Crimestoppers on 0800 555 111 quoting OC*2892.