The more information you are able to give us, the more easily we will be able to locate your friend or relative. Thailand is a large country and communications and infrastructure in many parts of the country are not highly developed.

Advice from US Embassy website in Thailand

You should be aware that responsibility for conducting searches overseas rests with the local police force abroad . . . . We cannot use public funds to finance rescue operations for people missing in remote areas nor pay for the recovery or repatriation of the body in the unfortunate circumstances where this may be necessary.

Extract from Foreign and Commonwealth Office leaflet “Missing Persons Abroad”, March 2009