The new Act required migrants to have a job before they arrived, to possess special skills or who would meet the "labour needs" of the national economy. In 1965, to combat the perceived injustice in the case where the wives of British subjects could not obtain British nationality, the British Nationality Act 1965 was adopted. Shortly afterwards, refugees from Kenya and Uganda, fearing discrimination from their own national governments, began to arrive in Britain; as they had retained their British nationality granted by the 1948 Act, they were not subject to the later controls. The Conservative MP Enoch Powell campaigned for tighter controls on immigration which resulted in the passing of the Commonwealth Immigrants Act in 1968.