Parliamentary Private Secretary to the Prime Minister Bonar Law's Parliamentary Private Secretary, J.C.C. Davidson acted in effect as his Chief of Staff. Margaret Thatcher's downfall from the Conservative Party leadership in 1990 is attributed by many to the actions of her Parliamentary Private Secretary, Peter Morrison, in failing accurately to count votes amongst Conservative backbenchers. Some Parliamentary Private Secretaries to the Prime Minister go on to hold higher office; Lord Dunglass served as Parliamentary Private Secretary under Neville Chamberlain and later went on to serve as Prime Minister in his own right. There can be multiple Parliamentary Private Secretaries to the Prime Minister at a given time.
Prime Minister of Sri Lanka the Sri Lanka Police. During emergencies military units have been allocated to bolster security. At present the Prime Minister's Security Division is in charge of security of the Prime Minister. The post of Prime Minister of Ceylon was created in 1947 prior to independence from Britain and the formation of the Dominion of Ceylon in 1948. United National Party leader D. S. Senanayake became the first Prime Minister of Then Ceylon in 1947 after independence. In 1972 when Sri Lanka became a republic the name of the post changed to Prime Minister of Sri Lanka. With a Westminster-based political system