The Namibia constitution adopted on 21 March 1990 is considered a model of democratic government. Universal suffrage and a strong emphasis on human rights and political freedom are prominent. An independent judiciary and legal obligations to improve the disadvantaged sectors of the population are written into the government. Namibia has a bicameral legislature. It consists of a National Assembly of 72 deputies elected for a five-year term, and up to six members appointed by the president, and a National Council comprised of two members from each of 13 regions elected for a six-year term. The National Council functions purely in an advisory capacity. The president is elected by direct, popular vote and serves as head of state and government and commander-in-chief of the defense force for no more than two five-year terms. The constitution was amended in November 1999 specifically to allow Nujoma (alone) a third term, a move that has attracted criticism both from within the country and the international community. There is also an independent ombudsman to investigate complaints and take action in defense of the interests of individuals and organization in their dealings with the state.