In this Act, unless there is anything repugnant in the subject or context,-----

(a) "cigarettes" include cut tobacco rolled up in paper, tobacco leaf, or other material in such form as to be capable of immediate use for smoking;

(b) "police-officer" means a member of an established police force above the rank of a head constable; and

(c) "tobacco" means tobacco in any form, and includes any smoking mixture intended as a substitute for tobacco.