INTERCEPTION OF COMMUNICATIONS AND SURVEILLANCE ORDINANCE PART 1 1-26 Section 3 Cap. 589 which constitutes or would constitute the particular threat to public security; and (c) the interception or covert surveillance is necessary for, and proportionate to, the purpose sought to be furthered by carrying it out, upon— (i) balancing the relevant factors against the intrusiveness of the interception or covert surveillance on any person who is to be the subject of or may be affected by the interception or covert surveillance; (ii) considering whether the purpose sought to be furthered by carrying out the interception or covert surveillance can reasonably be furthered by other less intrusive means; and (iii) considering such other matters that are relevant in the circumstances. (2) In this section, “relevant factors” (有關因素) means— (a) the immediacy and gravity of— (i) where the purpose sought to be furthered by carrying out the interception or covert surveillance concerned is that specified in subsection (1)(a)(i), the particular serious crime to be prevented or detected; or (ii) where the purpose sought to be furthered by carrying out the interception or covert surveillance concerned is that specified in subsection (1)(a)(ii), the particular threat to public security; and (b) the likely value and relevance, in relation to the purpose sought to be furthered by carrying out the interception Last updated date 24.6.2016