f. information, subject to such qualifications and laws as are necessary in a democratic society; g. freedom of movement which means the rights to leave and enter Ghana and immunity from expulsion from Ghana. Political Pluralism in Ghana Ghana has a pluralistic political system, which is manifest in the right to form political parties in accordance with the Political Parties Law (PNDCL). Article 3 of the 1992 Constitution debars Parliament from enacting a law establishing a one-party state whilst Article 55(a) guarantees the right to form political parties. There are approximately 7 registered political parties in the country. Professional and Interest Group Activity Numerous professional bodies and interest groups also exist to freely champion the cause of their various constituents, and to exert pressures and checks on the state to act in ways favourable to their members. Among the most politically vocal and influential interests groups in the country are the Trade Unions Congress (TUC), the Ghana Bar Association (GBA), the Ghana Medical Association (GMA), the Ghana National Association of Teachers (GNAT), the National Union of Ghanaian Students (NUGS), the Ghana Registered Nurses' Association (GRNA) and the Judicial Services Staff Association (JUSAG). Thus, trade unions, political parties and a host of interest groups operate in an atmosphere of institutionalized pluralism. Article 12 of the African Charter .1. Every individual shall have the right to freedom and residence within the borders of a State provided he abides by the law 2. Every individual shall have the right to leave any country, including his own, and to return to his country. This right may only be subject to restrictions, provided for by law for the protections of national security, law and order, public health or morality. 3. Every individual shall have the right, when persecuted, to seek and obtain asylum in other countries in accordance with the laws of those countries and international conventions.