Arrest by private person or group of persons and procedure on such arrest:

Any private person or group of persons may arrest or cause to be arrested any person who commits a non-bailable and cognizable offence under this Act, and, without unnecessary delay, shall make over or cause to be made over any person so arrested to the Excise & Narcotics officer or Police officer, or, in the absence of the Excise or Police officer, take such person or cause him to be taken in custody to the nearest Excise & Narcotics Station or Police Station.