The Constitutional Court is a high state institution which has an authority as a negative Legislature to overturn legislation that is contrary to the 1945 Constitution. However, in the decision Number 28/PUU-XI/2013 and Decision Number 85/PUU-XI/2013, the Constitutional Court is as a positive Legislature by enacting the act. This study reviews the legal considerations and the validity of the Constitutional Court to rule against the enforcement of an act in the decision. The methodology used is a qualitative research with the doctrinal approach (normative). The results of this study is concluded that the Constitutional Court that rules to the act is a progressive and responsive decision in order to avoid a legal confusion as a result of a legal vacuum in a society. However, that kind of decision is a decision that is not in a harmony with the principle of division-of-power related to checks and balances
