By the early 1960s, Powell was in support for the campaign on immigration controls. The earliest and only statement from then by Powell on immigration was in August 1956 at Wolverhampton, Powell said that "a fundamental change in the law is necessary" in the UK's citizenship law, although he explained that a change was not needed at that time but did not rule out the possibility of a future change. In the late 1950s when other Conservatives were advocating a campaign for immigration control following race riots, Powell declined to join them remarking that it was no good discussing the details when the "real issue" of the citizenship laws had remained unchanged. In November 1960, Powell became one of nine members of the ministerial committee which wanted to introduce controls of Commonwealth immigration; he submitted a letter in April 1961 which said "if we desire to limitations or conditions on the entry of coloured British subjects into this country" a change in the existing legal definition of a "British subject" was needed since the British Nationality Act of 1948 considered all those from independent Commonwealth countries listed under the UK's nationality law to be British subjects.