In 1993 on 22 April, Stephen Lawrence, a black teenager aged 18, was stabbed to death while waiting for a bus. Stephens mum Doreen claimed the Met Police didn't carry out a professional investigation into his murder as all 5 suspects were not charged.
Her voice led to a rule against double jeopardy (being tried for same crime twice) was dropped, 2 of Stephens murderers were convicted, and a charity as well as bursary for young architects were both established by his mum in his name