Nicholas Jacobs, 44, is due to appear at the Old Bailey on Friday after being charged with the 1985 murder of PC Keith Blakelock during riots in Tottenham, north London.
Jacobs is accused of killing the 40-year-old officer, who was stabbed as he tried to protect firefighters as they tackled a blaze at a supermarket during the height of the unrest in Tottenham.
Prosecutors announced on Tuesday that Jacobs had been charged over Pc Blakelock's death.
More top news
The family said the three years the court cases have dragged on have not allowed them to mourn his death properly.
Witnesses told ITV News a brawl broke out in the crowd after hecklers shouted racist abuse at the 74-year-old soul singer.
The figures were obtained by a Freedom of Information requests by Caroline Pidgeon, Liberal Democrat London Assembly transport spokesperson.