Complex sentence: In 1967 he became the first black police officer in Britain, after a 30 year career, he received three commendations, and was first black Metropolitan Police officer to be awarded the Queen's Police Medal QPM for Distinguished Service.
Split into simpler sentences: In 1967 he became the first black police officer in Britain. After a 30 year career, he received three commendations, and was first black Metropolitan Police officer to be awarded the Queen's Police Medal QPM for Distinguished Service.