In 1993, an 18-year-old man called Stephen Lawrence was murdered by a racist gang. The subsequent police inquiry was hugely unsuccessful (nobody was successfully prosecuted until nearly 19 years later despite lots of evidence including video footage of the gang bragging and planning how they would kill a black man) and crucially didn't acknowledge the racist motives of the killers. A subsequent inquiry into the investigation reported in 1999. It made many recommendations relating to police reform and famously described the Metropolitan Police as being institutionally racist.