Police reportedly spied on the family of Jean Charles de Menezes - who was shot dead by officers who mistook him for a suicide bomber in 2005.
A report on undercover policing released today is critical of the Metropolitan Police.
Undercover police units gathered and kept information on black justice groups that "served no purpose in preventing crime", a report will say.
Derbyshire Chief Constable Mick Creedon, who leads the report into the conduct of Scotland Yard moles which will be released today, will say the highly secretive Special Demonstration Squad (SDS), Special Branch and senior management flouted rules about what details should be kept.
A series of allegations were made against the SDS, including officers tricking women into serious sexual relationships and using identities of dead children without permission, which led to this inquiry.
The squad was also accused of infiltrating campaign groups of murder victim Stephen Lawrence and gathering information to "smear" his relatives.
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.