Reference
Moonshot's Answer
Under the London Government Act 1963, the Metropolitan Police District underwent significant changes. The Act reduced the number of local government districts in the area, leading to larger authorities responsible for bigger areas and populations. The excised county areas were reassigned to Essex Police, Hertfordshire Constabulary, and Surrey Police. The provisions of the Act came into effect on 1 April 1965, with new councils elected as "shadow authorities" in 1964. The Metropolitan Police District was extended again under this Act. These changes aimed to streamline local governance and police jurisdiction, aligning them more effectively with the growing and changing population of the metropolitan area. For more detailed information, you can refer to the Wikipedia page on the London Government Act 1963.
Follow Up
Related
Which artist recorded a popular 1963 cover of 'Frosty the Snowman'?
Which areas were constituent parts of Greater London before the 1963 reforms?
How did the London Government Act of 1963 affect educational governance in London?
What role did Mathew Ahmann play in the 1963 March on Washington?
Which nation ranked second in the medal table of the 1985 Championships?
What role did Mathew Ahmann play in the March on Washington in 1963?
Which boroughs were abolished or transferred by the London Government Act of 1963?
How did the London Government Act 1963 classify the London boroughs?
Which Middlesex districts were transferred to Hertfordshire by the London Government Act 1963?