CCTV images have been released after a till snatch at the Spar shop in Victoria Road, Louth.
The person pictured made a purchase in the shop and, when the cashier opened the till, reached over and grabbed a quantity of notes.
Police are appealing for information on the incident that happened at around 6:50pm on March 10.
The offender was also wearing dark trousers with a blue stripe down the legs and dark coloured footwear with a green fluorescent tabs.
Anyone with information or who saw the someone matching the description should contact PC Paul French by dialling 101 and quoting incident number 303 or via Crimestoppers anonymously on 0800 555 111.