Legislative power is the lawmaking power, the framing and enactment of laws. This starts from the time the law is introduced by a lawmaker and effected through the adoption of a bill which once approved becomes a statute or a law. A statute is the written will of the legislature, solemnly expressed according to the forms necessary to constitute it the law of the state. (Black, 1951).
The power to make laws includes the power to alter and repeal them. Thus, only the Congress can alter and repeal laws and not in anyway the other branches of government as enunciated in the case of Gonzales vs. Hechanova (9 SCRA 230).