For my farang (foreign) friends in Bangkok.
Police advice for foreigners
1. When a foreigner is stopped for a search:
• They may take photos of police before a search is conducted.
• Searches must be conducted in well-lit and public area.
• Foreigners should not pay any money to police officers who are conducting a search, even if they are asked to do so.
• Vehicles or taxis can only be stopped and searched at a designated checkpoint, under the control of officers.
2. The collection of urine samples for drug testing can only be conducted at a police station.
3. Foreigners may carry a copy of the photo page and entry-stamped visa page of their passports, in lieu of carrying the original document.