Section 32: Obstruction of an authorized officer of a relevant agency.

(1) A person who wilfully—
(a) obstructs an authorised officer of a relevant agency in the exercise of any of the powers conferred on the agency by this Act,
(b) fails to comply with any lawful enquiry, request, or information, wherever located, made by any authorised officer in accordance with the provisions of this Act,
(c) refuses an authorised officer of a relevant agency access to any premises, or fails to submit to a search by a person authorised to search him under this Act,
(d) assaults an authorised officer of a relevant agency in the execution of his duty under this Act, or
(e) fails to produce, or conceals or attempts to conceal from an authorized officer of a relevant agency, any book, document, information storage system, or article in relation to which the officer has reasonable grounds for suspecting or believing that an offence under this Part or any other law prohibiting terrorism has been or is being committed, or which is liable to seizure under this Act,
commits an offence, and is liable on conviction to imprisonment for a term of at least seven years.
(2) A person who—
(a) discloses to another anything which is likely to prejudice a terrorist investigation, or
(b) interferes with material, which is likely to undermine a terrorist investigation, or likely to be relevant to a terrorist investigation, commits an offence, and is liable on conviction to imprisonment for a term of at least seven years.
(3) It is a defence for a person charged with an offence under subsection (2) that the person did not know and have reasonable cause to suspect that the disclosure was likely to affect a terrorist investigation.