Chief Minister

"Chief Minister" and "Menteri Besar" both mean the president, by whatever style known, of the Executive Council in a State;
ACT 000 - FEDERAL CONSTITUTION
160. Interpretation.

Chief Minister

"Chief Minister", in relation to - (a) the States of Malaysia, means the Chief Minister or Mentri Besar of a State; (b) the Federal Territory, means the Minister; (c) the Malaysian Embassy, High Commission or Consulate, means the Malaysian Ambassador, High Commissioner or Counsel respectively;
ACT 164 - LAW REFORM (MARRIAGE AND DIVORCE) Act 1976
2. Interpretation.

chief Minister

"chief Minister" means- (a) the chief Minister of penang; (b) the chief Minister of Malacca; (c) the chief Minister of sabah; or (d) the chief Minister of sarawak,
ACT 739 - PERUMAHAN RAKYAT 1MALAYSIA ACT 2012
2. Interpretation

Chief Minister

"Chief Minister" includes Menteri Besar;
ACT 388 - INTERPRETATION ACTS 1948 AND 1967 (CONSOLIDATED AND REVISED 1989)
66. DEFINITIONs.