Section 9(2)(f) in The Narcotic Drugs And Psychotropic Substances Act, 1985
(f)provide for the weighment, examination and classification, according to the quality and consistence, of the opium received at the factory and the deductions from or additions (if any) to the standard price to be made in accordance with the result of such examination; and the authorities by which the decisions with regard to the weighment, examination, classification, deductions or additions shall be made and the authorities before which appeals against such decisions shall lie;