Police are appealing for help to identify a man who may have information about cannabis production at a property in Bozeat.
Officers would like to speak to the man, who they believe may have information that could help with their enquiries.
He is believed to be from Vietnam and may go by the name of Nguyen Van Khoung.
Officers are urging him or anyone who knows or recognises him to contact them.
Anyone who recognises the man in the photograph or who may know of his whereabouts, is asked to contact Northamptonshire Police on 101 or Crimestoppers anonymously on 0800 555111.