Should Countries With Appalling Human Rights Be Allowed To Play In Sporting Events?

Who are the arbiters when deciding what is 'appalling human rights'? Should an international committee be set up to decide who is contravening 'human rights'? Who would sit on this committee? What criteria would they use? How do you define 'human rights'? For example, we now have a situation were convicted child murderers and rapists are demanding their "human rights"! And they have taken their respective countries to the European Court to seek restitution and to receive an official apology.