The parties lobbied the colonial government for a further increase in constitutional powers for the elected government, and in June 1953 a new constitution provided for the appointment of a chief minister and seven other Ministers from the elected House of Representatives. They now had a majority over the official and nominated members. For the first time, the Ministers could now exercise wide responsibility in the management of the internal affairs of the island. The only limits placed on their powers pertained to public security, public prosecutions and matters affecting members of the Civil Service, which still fell under the Colonial Secretary. In 1953, Bustamante became Jamaica's first chief minister (the pre-independence title for head of government).