The Supreme Tribunal may meet either in specialized chambers (of which there are six: constitutional, political/administrative, electoral, civil, criminal, and social) or in plenary session. Its main function is to control, according to the constitution and related laws, the constitutionality and legality of public acts.
The Supreme Tribunal's 32 justices
(magistrados) are appointed by the National Assembly and serve non-renewable 12-year terms. They may also be removed "for serious offences" by a two-thirds vote of the National Assembly.