Cressida Dick was the first what to become head of London's Metropolitan police department?
Commissioner of Police of the Metropolis The Commissioner of Police of the Metropolis is the head of London's Metropolitan Police Service. The post is currently held by Cressida Dick, who assumed office on 10 April 2017.
Wyndham Childs Major-General Sir Borlase Elward Wyndham Childs (15 December 1876 – 27 November 1946) was a British Army officer who also served as Assistant Commissioner of Police of the Metropolis from 1921 to 1928.