The Duke of York inspects men of London's Special Constabulary - the volunteer police force.
Full title reads: "Hyde Park. Bravo London's 'Specials!' 4,000 strong, voluntary and unpaid auxiliary to the regular Metropolitan Police, reviewed by the Duke of York.
Hyde Park, London.
Prince Albert, Duke of York (later King George VI) inspects the ranks of Special policemen.
The Duke presents trophies to various members of the Special Constabulary.
A group of mounted policemen ride past as the Duke takes the salute. They are followed by marching men.