The officer is definitely wearing police uniform, and the cap badge of the Caithness-shire Constabulary, but I can find NO record of any James P Sutherland having served in that force. Given the presence of medal ribbons, I reckon the photo relates to just post-WW1, when there was very little recruitment of regular officers. Number 14 would have (from his appointment date in 1920) been worn by PC Donald Beaton Cormack who went on to become an Inspector. It seems to be only after 1919 that officers were allocated a permanent number - seems as though numbers were changed before then to reflect seniority of service, and thus not recorded on official personnel records before then. From photos of the time, the number of the collar was usually prefixed by a letter "C" which is not apparent in the photo, so I wonder if the chap in the photo was actually a SPECIAL Constable - no records known to exist of these - in view of the mention that the Mr Sutherland was a printer to trade. So it could well have been him as a Special Constable (part-time unpaid auxiliary officer).