(1)If a court security officer acting in the execution of his duty reasonably believes that an article in the possession of a person who is in, or seeking to enter, a court building ought to be surrendered on any of the grounds given in subsection (3), he must ask the person to surrender the article.
(2)If the person refuses to surrender the article, the officer may seize it.
(3)The grounds are that the article—
(a)may jeopardise the maintenance of order in the court building (or a part of it),
(b)may put the safety of any person in the court building at risk, or
(c)may be evidence of, or in relation to, an offence.