From The Guardian:
NEXT month marks the 40th anniversary of the first Asian woman joining the Metropolitan Police.
Karpal Kaur Sandhu served in Walthamstow and Leyton after joining the force on February 1 1971.
She paved the way for many Asian and women in the force, proving invaluable as an interpreter and was drafted in to deal with CID cases all over London where a female officer was needed.
She was born to a Sikh family in Zanzibar, east Africa, in 1943 and came to the UK in 1962, when she got a job as a nurse.
After joining the police, she served at Hornsey before moving to the Leyton division of the Met.