The following statement has been released on behalf of the family of Pc Keith Blakelock.
"The family of PC Keith Blakelock have never given up hope in getting justice for him. We welcome this news, and extend our eternal gratitude to the Metropolitan Police Service."
More top news
A boy has died after he and his friends were attacked while cycling in north London.
Three police officers have been praised for their actions in helping a four-year-old boy who had become stuck on a roof in Newham.
A mother who lost precious photos of her dead infant son when her tablet was stolen is appealing for them to be returned.