Human rights in Madagascar are protected under the constitution and the state is a signatory to numerous international agreements including the Universal Declaration of Human Rights and the Convention on the Rights of the Child. Religious, ethnic and sexual minorities are protected under the law. Freedom of association and assembly are also guaranteed under the law, although in practice the denial of permits for public assembly has occasionally been used to impede political demonstrations. Torture by security forces is rare and state repression is low relative to other countries with comparably few legal safeguards, although arbitrary arrests and the corruption of military and police officers remain problems. Ravalomanana's 2004 creation of BIANCO, an anti-corruption bureau, resulted in reduced corruption among Antananarivo's lower-level bureaucrats in particular, although high-level officials have not been prosecuted by the bureau. Accusations of media censorship have risen due to the alleged restrictions on the coverage of government opposition. Some journalists have been arrested for allegedly spreading fake news.