5.—(1) An enforcement officer may, if authorised, cause any article in relevant premises—
(a)to be dismantled;
(b)to be tested;
(c)to have any other process applied to it.
(2) An enforcement officer may, if authorised, cause any substance in relevant premises—
(a)to be tested;
(b)to have any other process applied to it.
(3) The enforcement officer may exercise the powers in sub-paragraphs (1) and (2) only if it appears to that officer—
(a)that the article or substance has caused, or is likely to cause, danger to security; or
(b)that it is desirable to do so in the interests of security.
(4) Before exercising a power in this paragraph, the enforcement officer must consult anyone whom that officer considers it appropriate to consult about the dangers (if any) of what is proposed.
(5) Anything done to the article or substance under this paragraph must not damage or destroy it unless in the circumstances that is unavoidable.
(6) If requested by a person who has responsibilities in relation to the relevant premises, and is on the premises, the enforcement officer must allow anything done to the article or substance under this paragraph to be done in that person’s presence, unless the enforcement officer considers it would be prejudicial to security.