Northern Rhodesia had been detained without trial, following claims that they had planned the indiscriminate killing of Europeans and Asians, and of African opponents, the so-called "murder plot". Shortly afterwards, on 12 March 1959, the governor of Northern Rhodesia also declared a State of emergency there, arrested 45 Zambia African National Congress including Kaunda and banned the party. Kaunda later received a 19-month prison sentence for conspiracy, although no credible evidence of conspiracy was produced. The declaration of States of emergency in both Northern Rhodesia and Nyasaland marked the end of attempts by their nationalist parties to work within the colonial system,
Northern Rhodesia were unchallengeable and persuaded the United Kingdom government to enter into direct negotiations over the future administration of Northern Rhodesia. As a result, a settlement was achieved by which Northern Rhodesia remained a protectorate but came under the British government, with its administrative machinery taken over by the Colonial Office, while the British South Africa Company retained extensive areas of freehold property and the protectorate's mineral rights. It was also agreed that half of the proceeds of land sales in the former North-Western Rhodesia would go to the Company. On 1 April 1924, Herbert Stanley was appointed as Governor and