[vertis]

This is not exactly in the same category, but as I was coming back to Australia a few weeks ago I saw a sign stating that Australia considered child abuse committed internationally to be a crime and would prosecute.

With regard to this particular case, it really is your responsibility to know the laws of the place you're going to.

[klodolph]

I always assumed this was because Australia was relatively close to "popular" sex tourism destinations. You don't want to be known for exporting child abusers.

[vertis]

I think it's for that reason and also a broader international effort to combat the problem.