Relevant sections of the legislation are as follows:

Section 73(1) Internal Security Act 1960: "Any police officer may without warrant arrest and detain pending enquiries any person in respect of whom he has reason to believe that there are grounds which would justify his detention under section 8; and that he has acted or is about to act or is likely to act in any manner prejudicial to the security of Malaysia or any part thereof or to maintenance of essential services therein or to the economic life thereof."

Sect 8. Power to order detention or restriction of persons. "(i) If the Minister is satisfied that the detention of any person is necessary with a view to preventing him from acting in any manner prejudicial to the security of Malaysia or any part thereof or to the maintenance of essential services therein or the economic life thereof, he may make an order (hereinafter referred to as a detention order) directing that that person be detained for any period not exceeding two years."