the Rules. In Chapter IV, there are provisions to grant exemption from prohibition to some substances and there are also provisions to regulate and control the use of such exempted substances. In this Chapter, there are provisions for issuing licences, permits etc. to control and regulate the manufacture, use, consumption etc. of such substances. There are also provisions which authorize the officers of Excise Department to issue the licences, permits etc. The provisions of Chapter IV-A are made to regulate the manufacture etc. of articles, which are exempted under Chapter IV, particularly, mentioned in section 24-A. Chapter IV-B, V, VI contain provisions for control and regulation of use of some other substances like mhowra flowers, spirit preparation and molasses. These substances can also be used for manufacture of intoxicant or alcohol. The provisions of Chapter II, III, IV, IV-A, IV-B, V and VI do not refer to the powers of police officers. They are referred, particularly, to the officers of Excise Department. Unless powers are specifically conferred on police officers under section 6 of the Act, police officers cannot become members of this establishment for the purpose of these provisions.