Ryan Preston, 25, is from Harrogate and has links to Boroughbridge.
Officers are asking anyone who sees Preston, or those who have any information about his current whereabouts, please call North Yorkshire Police on 101. If the sighting is immediate, please call 999.
Alternatively, you can pass on information anonymously through independent charity Crimestoppers by calling 0800 555 111 or via their website.
Please quote reference number 12250086588 when providing information.
