This thesis focuses on the doctrine of judicial review and the need to establish a constitutional court in Mexico. The paper critically examines the doctrine of judicial review under the common law (US) and civil law (Germany) jurisdictions. Although the doctrine of judicial review in Mexico is a combination of both models, several decades of institutional arrangements prevent the Mexican judicial system from achieving effective instruments to enforce basic constitutional principles and maintain an equilibrium of powers. This thesis proposes a constitutional review that will create independent constitutional courts, with powers to review executive and legislative powers.