This constitution established the Brazilian Empire as a Unitary state (the provinces had little autonomy, if any). The Amendment ("Ato Adicional") of August 12, 1834, enacted in a period of liberal reform, authorized the provinces to create their own legislative chambers, which were empowered to legislate on financial matters, create taxes and their own corps of civil servants under a chief executive nominated by the central power; it was however revised by an "interpretive" act of May 1840, enacted in a period of conservative reaction, which allowed the central power to appoint judges and police officers in the provinces.