Abstract

This article analyzes the evolution of the Administrative Court of Mexico City over the past 50 years, with a particular focus on the 2019 constitutional amendment that granted it the power to introduce legislation. This transformation reflects a shift in the traditional conception of the separation of powers, whereby judges no longer merely apply the law but also contribute to its creation. The article explains that legislative initiative is the act that initiates the lawmaking process and that, in the modern state, it is no longer the exclusive domain of the Legislative Branch, but has extended to other actors such as the Executive Branch, citizens, and the courts. Furthermore, it is argued that judges create law through interpretation, resolving legal gaps, and establishing precedents. Finally, it is emphasized that the Court’s autonomy justifies its authority to propose laws in matters within its jurisdiction, thereby strengthening the efficiency of the legal system and collaboration among the branches of government in a modern constitutional state.