I think irregardless of the country of origin for the company making the complaint it should be held within the actual country the person resides in and has supposedly committed a crime, otherwise it ruins the system.

Legal specifics will depend on the country you live in.

For example, this would not be possible in France (i live there) as the country never extradites any of its citizens for any reason - this will stand even if you committed a crime abroad and managed to get back, you could only be tried back home -

As for the british kid, I support him 100% but it seems that the UK has signed very liberal agreements with the US concerning their citizens...

Out of interest, if a French citizen had done this, is there any real prospect that they would have been prosecuted?

NB It's not just France that has this policy:

http://en.wikipedia.org/wiki/Extradition#Bars_to_extradition