Five-year-old Santisuk's job involves duty at a checkpoint in the Saiburi district in the Yala province and helping residents collect coconuts.
The monkey was adopted by policeman after he was found with a broken arm, and was soon trained to pick up coconuts - each service being rewarded with a bottle of milk.
The precinct's Police Corporal Yutthapol Phromdao Yutthapol takes Santisuk with him on patrol every day.
He said compared to other checkpoints, where officers had to deal with annoyed motorists, his was a 'happy place'.
Motorists willingly slowed their vehicles to play with the monkey and others got out to have their photo taken with it.
Other police precincts are considering introducing their own monkey recruits after Santisuk - which means 'peace' in Thai -proved to improve the force's image in the troubled, predominantly Muslim province.
Separatists are blamed for most of the attacks on Thailand's predominantly Muslim deep south, which often target Buddhists and Muslims associated with the Thai state, such as police, soldiers, government officials and teachers.
From Our Network
- Check out hot pics of Pooja Bedi's daughter Aalia Ebrahim!
- PM Narendra Modi to visit five nations from June 4; to discuss black money with swiss
- Know about Ranjit Katyal “ The man who saved 1.7 Lakh Indian in Kuwait
- After Aishwarya, Abhishek Bachchan speaks up on Salman Khan’s Rio controversy
- Had 10 seconds to make the final call: Pilot of air ambulance which crash-landed in Delhi