A major report into claims of police corruption in the original Stephen Lawrence murder investigation is to be published today.
Stephen, 18, a would-be architect, was stabbed to death by a group of up to six white youths, in an unprovoked racist attack as he waited at a bus stop in Eltham, south east London, with a friend on April 22 1993.
It took more than 18 years to bring two of Stephen's killers to justice.
An inquiry following the murder led the Metropolitan Police to be accused of institutional racism and found failings in how the force had investigated the crime.
Findings of a review by barrister Mark Ellison QC, who successfully prosecuted Gary Dobson and David Norris for Stephen's murder in 2012, are to be laid before parliament today.
Among allegations looked at by Mr Ellison are claims the police tried to smear the Lawrence family in the aftermath of Stephen's murder.
Undercover officer Peter Francis said he was instructed in 1993 to find information that could discredit the Lawrence family.