On April 1, following overwhelming support in a national referendum, Khomeini declared Iran an Islamic republic. Elements within the clergy promptly moved to exclude their former left-wing, nationalist, and intellectual allies from any positions of power in the new regime, and a return to conservative social values was enforced. The Family Protection Act (1967; significantly amended in 1975), which provided further guarantees and rights to women in marriage, was declared void, and mosque-based revolutionary bands known as komītehs (Persian: “committees”) patrolled the streets enforcing Islamic codes of dress and behaviour and dispatching impromptu justice to perceived enemies of the revolution.