In Khrung Thep/Bangkok, on Rama IV Road(Thanon Phra Ram IV)at the corner of Thanon Si Phraya/Si Phraya Road ,which is near Thanon Silom/Silom Road ,there is a booth similar to a large police booth. One night at about maybe 7 or 8 pm there was a car with a circular printed badge on the door and maybe the words 'Ruankatanyu Foundation' on the badge,and the car was parked next to the booth. A Farang was the driver and he was wearing a uniform with a white shirt and maybe a shoulder badge and shoulder stripes, similar to a soldier.He may have entered the booth. What is his occupation or reason for being there? Is he a type of bilingual informal policeman to assist tourists in trouble ? Is he there to help people in a traffic accident? Is he a volunteer? What is the Ruankatanyu Foundation?