The mother of Stephen Lawrence told ITV News it was a "disgrace" that the Metropolitan Police were "spying" on her family when they were mourning the loss of their son.
Doreen Lawrence added that all the family wanted "was to catch Stephen's killers" but it was clear the Met "had a different agenda."
Ms Lawrence's comments come after a report into the police inquiry into the murder of Stephen uncovered evidence of corruption.
A senior Met Police officer has been moved from his role following the publication of a report into Stephen Lawrence's murder investigation.
Almost 21 years after Stephen Lawrence was stabbed to death, the Home Secretary has ordered a public inquiry into undercover policing .