s 48 Proclamation of security areas
48.—(1) If in the opinion of the President public security in any area in Singapore is seriously disturbed or threatened by reason of any action taken or threatened by any substantial body of persons, whether inside or outside Singapore, to cause or to cause a substantial number of citizens to fear organised violence against persons or property, he may, if he considers it to be necessary for the purpose of suppressing such organised violence, proclaim such area as a security area for the purposes of this Part. (2) Every proclamation made under subsection (1) shall apply only to such area as is therein specified and shall remain in force until it is revoked by the President or is annulled by resolution passed by Parliament:Provided that such revocation or annulment shall be without prejudice to anything previously done by virtue of the proclamation. (3) A proclamation made under subsection (1) shall be published in such manner as the Minister thinks necessary for bringing it to the notice of all persons who in his opinion ought to have notice thereof and shall have effect as soon as such notice has been given, without publication in the Gazette. (4) A copy of every proclamation made under subsection (1) shall be published in the Gazette and shall be presented to Parliament as soon as possible after it has been made.