The French and Russions together again

Now with allegations of collusion between the French and Russian Olympic judges looming, the possibilities of what types of consequences will come about in this particular instance and for all the sport of figure skating. Here is a question, if there are legal wrongdoings involving foreign nationals at the Olympic Games, how are they handled? Are all the foreign citizens and athletes subject to the laws of the host country? Are there separate Olympic tribunals set up for these types of situations?