57.— (1) A person who intentionally and without lawful excuse inserts any item other than a postal packet into a post box commits an offence and is liable—

(a) on summary conviction, to a class C fine or imprisonment for a term not exceeding 12 months or both, or

(b) on conviction on indictment, to a fine not exceeding €75,000 or imprisonment for a term not exceeding 5 years or both.

(2) A person who intentionally interferes with the exterior of a post box, except with the prior consent of the postal service provider concerned, commits an offence and is liable on summary conviction to a class C fine or imprisonment for a term not exceeding 12 months or both.