20.—In this Part—

“container” does not include a container for any medicinal product;

“disposable container” includes—

(a) any bottle, can or other portable container or any part thereof (including any crushed or broken portable container or part thereof) for holding any drink which, when empty, is of a kind normally discarded or returned to, or left to be recovered by, the supplier, and

(b) any crate or packaging designed to hold more than one such bottle, can or other portable container;

“event” has the meaning assigned to it by section 21 (1);

“intoxicating liquor” includes any container containing intoxicating liquor, whether or not a disposable container.