How does national law work internationally.

[Gfactor]

@Northern_Piper

Your citizenship.

and see http://www.fas.org/sgp/crs/misc/94-166.pdf

As others have indicated, extradition is a creature of treaty. Most extradition treaties require double criminality. International Criminal Law - Ilias Bantekas, Susan Nash - Google Books

So extradition and criminal jurisdiction are not coterminous.

In international waters, are you beyond the reach of the law?

To the OP: It’s important to distinguish between these two criminal concepts and the broader concept of civil personal jurisdiction. Plenty of foreign nationals get sued in the U.S. for a variety of activities. Whether they are subject to personal jurisdiction depends on a series of factors. See Home

[Westrogothia]

Allthough Im not a legal expert.
Sex tourism laws doesnt sound applicable in this hypotethical situation.

[Gfactor]

@Huerta88

It was my impression that they generally would not do so, on First Amendment and policy grounds, given that English libel law places the burden of proving a “truth defense” on the defendant.

See, e.g., http://www.uniset.ca/other/css/877FSupp1.html for an example of a court refusing to enforce such a judgment on public policy grounds.

[Gfactor]

@Huerta88

[hijack] I’d look into that a bit more closely. The U.S. has a similar precedent making it a-okay to videotape shows off of your television, for personal backup/re-viewing use.

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And yet it remains quite illegal to bittorrent the same show – the precedent (at least in the U.S.) is very specific to your television and VCR (and, I guess now, DVR).

Actually, it’s a bit more complicated than that. See, http://boards.straightdope.com/sdmb/showpost.php?p=7941823&postcount=9