Any victim, witness or private detective licensed under the act of August 21, 1953 (P.L.1273, No.361), known as The Private Detective Act of 1953, to intercept the contents of any wire, electronic or oral communication, if that person is under a reasonable suspicion that the intercepted party is committing, about to commit or has committed a crime of violence and there is reason to believe that evidence of the crime of violence may be obtained from the interception.
A lot of NGOs do legislation scorecards like this all the time. It's a pretty well accepted tactic. The only problem is that the lists themselves get to be partisan. You might consider single issue lists across all jurisdiction and you pick out from a menu what votes you consider corrupt for your own personalized corruption map.