LAWS OF MALAYSIA
Postal Services Act 2012 [ Act 741]
PART XIII - OFFENCES AND PENALTIES
Section 64. Unlawful acts on postal article
A person who maliciously -

(a) disposes of or destroys;

(b) opens;

(c) keeps, detains or hides;

(d) delays, abandons or misdirects;

(e) tampers with; or

(f) obstructs,

any postal article in the course of its transmission, commits an offence and shall, on conviction, be liable to a fine not exceeding one hundred thousand ringit or to imprisonment for a term not exceeding two years or to both.