The suspects were identified as two French nationals, Wesley and Valen. Police charged them under Section 388 of the Criminal Law: committing a shameful act in a public place by exposing the body or engaging in other obscene behaviour. The offence carries a maximum penalty of a fine not exceeding 5,000 baht.
Following the arrest, police coordinated with the Phuket Provincial Immigration Office to take further action. Immigration officials revoked the couple’s visas and added their names to Thailand’s immigration blacklist. Authorities confirmed that the pair would be deported after paying the fine.
Source: The Thaiger

