7.—(1) Any officer of the Bureau, any police officer or any special police officer may arrest without a warrant any person who has committed or whom he reasonably suspects to have committed an offence under this Act.
(2) Any person so arrested shall, together with any article which is liable to seizure, be taken to the Central Narcotics Bureau or a police station and may be searched.
(3) No woman shall be searched under this Part except by another woman and with strict regard to decency.
(4) An officer making an arrest under this section may seize and detain any article liable to seizure.