A man believed to have used counterfeit cash in fruit machines is being sought by Northamptonshire Police.
The man pictured may have information about the money, which was used in the gaming machines on both the north and south side of the M1 northbound, junction 15a services.
The money was used between midnight on Monday, January 30 and 1pm on Monday, February 6.
Anyone with information can contact Northamptonshire Police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.