No. 25] 515 Interception of Communications (b) shall return the postal article, ifithas not been disposed of in terms of paragraph (a), or cause it to be returned to the postal provider if, in the opinion of the authorised officer concerned; (i) no criminal or civil proceedings contemplated will be instituted connection with the postal article or; (ii) as in the postal article will not be required at any such criminal or civil proceedings for purposes of evidence or for purposes or order of the court; and (iii) such postal article may be returned without prejudice to the national security of Belize, public safety, public health or cconomic well being of Belize as the case may be. 17. (1) If anentry warrant has been issued pursuant to the provisions of this Act, an authorised officer who executes or assists with the execution thereof, may at any time during which the entry warrant is in force, without prior notice to the owner or occupier of the premises specified in the entry Entry on premises for execution of warrant. warrant, enter the said premises and perform any act relating to the purpose for which the entry warrant has been issued. (2) Anentry warrant shall not be required by a public postal service or a service by means of a public or private communication network for the installation, maintenance, or operation of equipment of software required for the interception of communications or acquisition of protected information or traffic data as permitted under this Act. 18. (1) A person who provides a public postal service or a service by means of a public or private communication network shall take such steps as are necessary to facilitate, Duty to provide assistance.