This is the perennial problem in NI, each group is resposible for its actions to a different hierarchy. As I said to Ard Macha in a different thread the Catholic supporters of Sinn Fein do not go to the police for justice, they go to the local godfathers of the paramilitaries for retribution, not justice. The same is true of the other side but to a lesser extent. Until both sides agree to be bound by the same rules this situation will continue. The name Sinn fein is usually translated as 'ourselves alone' and they continue to live up to it, by being a law to themselves.
Giok