Dispersal of assemblies
13.—(1)  Whenever the Minister declares that an immediate threat to public peace exists within Singapore or any part thereof, any police officer not below the rank of sergeant may command any assembly of 10 or more persons within Singapore to disperse and it shall thereupon be the duty of those persons to disperse accordingly.
(2)  Any person joining or continuing in any assembly referred to in subsection (1) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $1,000 or to imprisonment for a term not exceeding 6 months or to both.
(3)  Any declaration under subsection (1) shall, but without prejudice to the making of a further declaration, remain in force for a period not exceeding 48 hours.
(4)  In any prosecution under this section, a certificate signed by the Minister as to the date and time of the making of a declaration shall be admissible in evidence and shall not be called in question in any court.