21 Act shall include whether the information which is considered necessary to acquire could reasonably be acquired by other means. 4. The interception required under Section 5(2) of the Act shall be the interception of such communications as are sent to or from one or more addresses, specified in the order, being an address or addresses likely to be used for the transmission of communications to or from, from one particular person specified or described in the order or one particular set of premises specified or described in the order. 5. The order under Section 5(2) of the Act shall, unless renewed, cease to have effect at the end of the period of two months from the date of issue. The authority which issued the order may, at any time before the end of twomonth period renew the order if it considers that it is necessary to continue the order in terms of Section 5(2) of the Act. The total period for the operation of the order shall not exceed six months. 6. The authority which issued the order shall maintain the following records: (a) the intercepted communications, (b) the extent to which the material is disclosed, (c) the number of persons and their identity to whom any of the material is disclosed, (d) the extent to which the material is copied, and (e) the number of copies made of any of the material. 7. The use of the intercepted material shall be limited to the minimum that is necessary in terms of Section 5(2) of the Act.