Police have released a CCTV image of a man they would like to speak to in connection with a theft in Lynn.
It happened at Tesco in Hardwick Road at 7.45pm on Thursday, September 17.
The man entered the store and asked a cashier to exchange a number of £10 notes for £20 notes. He then intentionally confused the cashier and left the store with extra cash.
He is believed to be with another man and officers believe the two may have been involved in a similar incident at the same store the week before on Thursday, September 10.
Officers are keen to speak to anyone who believes they may recognise the man in the image or hear from anyone who believes they may have been approached in such a manner.
Witnesses are asked to contact PC Natasha Hodges at Norfolk Constabulary on 101 or Crimestoppers anonymounsly on 0800 555 111.