Kicked out of Cambodia

What does one have to actually do to get kicked out of Cambodia? Seriously. This is the country where for a nominal charge, you can rent a RPG and blow up a cow. This is SE Asia where a major portion of the economy is based on sexual tourism. Hell, there are few places in the world where they cater more graciously to dirty old men. That being the case, what in God's name did Paul Francis Gadd aka Gary Glitter do to get thrown out of Cambodia and arrested in Vietnam? It truly boggles the mind. I can't imagine the Vietnamese government would arrest Glitter for having sex with two women under the age of 18. 18 is a Western idea, not an Eastern one. He had to do something truly debauched to get the hammer dropped on him. Having spent time in that area of the world (but not Vietnam specifically), I can't imagine what that would be. My imagination just isn't that good.