- (i) by way of alteration of, or addition to, the security measures specified in any information previously furnished by him under this paragraph; or
- (ii) by way of applying any security measures so specified to the airport, aircraft, or business carried on or service provided at the airport, not comprised in the previous information; or
- (b) any measures taken as mentioned in sub-paragraph (1) or in sub-paragraph (a) are discontinued.
(4) In so far as the notice requires further information to be furnished to the Commissioner in accordance with sub-paragraph (3), it shall require that information to be furnished to the Commissioner before the end of such period (not being less than 7 days from the date on which the further measures in question are taken or are discontinued) as is specified in the notice.
(5) Any person who—
- (a) refuses or, without reasonable excuse, fails to comply with a requirement imposed on him by a notice under this paragraph; or
- (b) in furnishing any information so required, makes a statement which he knows to be false in a material particular, or recklessly makes a statement which is false in a material particular,
shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000 or to imprisonment for a term not exceeding 12 months or to both.
(6) A notice served on a person under sub-paragraph (1) may at any time be varied or revoked by a further notice served on him by the Commissioner.
Power to inspect aircraft and airport
18.—(1) For the purpose of enabling the Commissioner to determine whether to issue a security directive to any person, or of ascertaining whether any such security directive is being or has been complied with, an authorised person shall have power, on production (if required) of his credentials, to inspect—
- (a) any aircraft registered or operating in Singapore, at a time when it is in Singapore; or
