Despite of widespread opinion that nothing would happen, in fact, if police bust you drunk – big problems can occur. Normally policeman takes a look how adequate you behave. If you don’t you should pass field sobriety test. In case it’s level too high hard Thai law comes into play. Until you would be brought to the court you spent at least one day in police station. You can pay deposit, which can range from 20,000 to 45,000 baht and wait for the court at home. The standard sentence is 20,000 baht fine and visa revocation. Probably you’d offered to resolve problem without deportation but it costs 20,000 more.