3.16.2.5 Enforcement: (i) type approval compliance checks; (ii) labelling compliance checks; (iii) enforcement of communication acts and regulations with respect to illegal users and equipment; (iv) initiate legal actions against perpetrator; (v) attend court as expert witnesses; and (vi) examples of illegal apparatus include a four channel blocker for large areas, a three channel blocker unit for small areas, bugging devices, GPS/tracker jammer that plugs into vehicle cigarette lighter socket and optical keyhole spy viewer with wireless screen