Art. 27 - Algeria associates itself with all the peoples fighting for their political and economic liberation, for the right of self-determination and against any racial discrimination. Art. 28 - Algeria works for the reinforcement of international cooperation and to the development of friendly relations among States, on equal basis, mutual interest and non interference in the internal affairs. It endorses the principles and objectives of the United Nations Charter. CHAPTER IV: Rights and liberties ART. 29 - All citizens are equal before the law. No discrimination shall prevail because of birth, race, sex, opinion or any other personal or social condition or circumstance. Art. 30 - The Algerian nationality is defined by the law. Conditions for acquiring, keeping, loosing or forfeiture of the Algerian nationality are defined by the law. Art. 31 - The aim of the institutions is to ensure equality of rights and duties of all citizens, men and women, by removing the obstacles which hinder the progress of human beings and impede the effective participation of all in the political, economic, social and cultural life. Art. 32 - The fundamental human and citizen’s rights and liberties are guaranteed. They are a common heritage of all Algerians, men and women, whose duty is to transmit it from generation to another in order to preserve it and keep it inviolable. Art. 33 - Individual or associative defence of the fundamental human rights and individual and collective liberties is guaranteed. Art. 34 - The State guarantees the inviolabilty of the human entity. Any form of physical or moral violence or breach of dignity is forbidden. Art. 35 - Infringements committed against rights and liberties and violations of physical or moral integrity of a human being are repressed by the law. Art. 36 - Freedom of creed and opinion is inviolable. Art. 37 - Freedom of trade and industry is guaranteed, it is carried out within the framework of the law. Art. 38 - Freedom of intellectual, artistic and scientific innovation is guaranteed to the citizen. Copyrights are protected by the law. The seizure of any publication, recording or any other means of communication and information can only be done in pursuance of a warrant.