The Independent Police Complaints Commission is not to take any action against South Yorkshire Police after the force referred itself having found a file on Stephen Lawrence.
Forces were asked to check records relating to the Macpherson Inquiry, which examined failings in the Metropolitan Police probe into the murder of teenager Stephen Lawrence in London in 1993.
It came after an undercover officer claimed he was tasked with trying to discredit the Lawrence family.
South Yorkshire Police found a file detailing how officers may have gathered intelligence on people who attended a public meeting in Sheffield in the 1990s where a member of the Lawrence family was due to speak.
A force spokesman said: “There is no indication of recordable conduct as there is nothing to suggest that there was any tasking relating to the Lawrence family or those connected with the family. If any evidence of recordable conduct does emerge, the matters should be re-referred.”