Section 41(2) in The Narcotic Drugs And Psychotropic Substances Act, 1985
(2)Any such officer of gazetted rank of the departments of central excise, narcotics, customs, revenue intelligence or any other department of the Central Government including the paramilitary forces or the armed forces as is empowered in this behalf by general or special order by the Central Government, or any such officer of the revenue, drugs control, excise, police or any other department of a State Government as is empowered in this behalf by general or special order of the State Government if he has reason to believe from personal knowledge or information given by any person and taken in writing that any person has committed an offence punishable under this Act or that any narcotic drug or psychotropic substance or controlled substance in respect of which any offence under this Act has been committed or any document or other article which may furnish evidence of the commission of such offence or any illegally acquired property or any document or other article which may furnish evidence of holding any illegally acquired property which is liable for seizure or freezing or forfeiture under Chapter VA of this Act is kept or concealed in any building, conveyance or place, may authorise any officer subordinate to him but superior in rank to a peon, sepoy or a constable to arrest such a person or search a building, conveyance or place whether by day or by night or himself arrest such person or search a building, conveyance or place.
