3. In rule 2(1) the following definitions shall be added:
““communication” includes any written or drawn communication from a prisoner to any other person, whether intended to be transmitted by means of a postal service or not, and any communication from a prisoner to any other person transmitted by means of a telecommunications system;
“intercepted material” means the contents of any communication intercepted pursuant to these Rules;
“telecommunications system” means any system (including the apparatus comprised in it) which exists for the purpose of facilitating the transmission of communications by any means involving the use of electrical or electro-magnetic energy.”.