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 of the main railway line was reserved for European settlement and farming. In 1938, it was reported that the Native Reserves were overcrowded, while much of the land reserved for Europeans was unoccupied and unused In 1918, the Privy Council of the United Kingdom had rejected the British South Africa Company claims to unalienated land in Southern Rhodesia, and this raised questions about the company's claim to unalienated land north of the Zambezi. However, the company's claim in Northern Rhodesia was based on concessions granted rather than conquest and, although a Northern Rhodesian parliamentary Committee in 1921 recommended that these