Criminalisation of Sinn Fein and the IRA?

With the cold war raging between Sinn Fein and emm, everyone else, it’s hard to find the longer view on all of this. But perhaps that’s what it’s like in moments of genuine political flux. The IRA is certainly not the only organisation at the moment in the virtual dock. But according to Robert McCartney’s sisters their problems are self inflicted. It begs the question, is the criminalisation of Sinn Fein and the IRA a result of a concerted political campaign, or is it a case of the movement beleiving itself above the law?