Santisuk, a five-year-old pig-tailed macaque monkey, wears a police shirt as he rides atop a patrol vehicle in Saiburi district in Yala province, Thailand.
The monkey, who was found injured, has now been adopted by local policemen.
Santisuk, which means peace in Thai, goes on patrol with the police each day.
The force believe Santisuk helps improve their image and relations with the local population in a troubled province.
Santisuk has a especially embossed shirt.