A comparative subject on the rule of law in the Senegalese and Gabonese political systems. The rule of law is a contemporary concept that some African countries have yet to assimilate. Fundamental rights enshrined in the country's constitution are sometimes flouted, such as the fundamental principle of freedom of expression. When a fundamental principle is violated, we are no longer in a democratic state, because these two concepts go hand in hand. This same idea is developed in parallel in administrative law with the principle of legality, which implies the submission of the Administration to the rule of law, in order to protect individuals against the arbitrariness to which they would be exposed if the Administration were not bound by any prior rule. As we can see, the rule of law is indeed the magical concept that governs our era, in that it lies at the interface of the various branches of law. As a result, it is becoming globalized, gradually spreading to states and politicalsystems all over the world. Any society in which the rule of law is neither enshrined nor legally guaranteed.