An investigation into police conduct is being launched following a fatal road accident in Staffordshire in 2003.
David Hulse, 37, of Stoke-on-Trent was fatally injured when he came off his bike while trying to avoid another vehicle on the A520 at Wetley Rocks.
A subsequent court case saw the other motorist being acquitted of careless driving.
Now the Independent Police Complaints Commission is to investigate following a complaint from Mr Hulse's family.
John Crawley, Commissioner for the West Midlands, said he would be looking at the conduct of police officers involved in the case and an allegation of perjury during the court case.
He said: "Our review will seek to determine whether any actions and decisions police officers took, or failed to take, were improper in any respect.
"We will seek to establish whether these had any significant adverse consequences for the adequacy of the road traffic investigation and the subsequent prosecution of the other motorist, which resulted in his acquittal of careless driving."
He emphasised it was not the IPCC's role to re-investigate the original incident but to examine the conduct of police officers.
"This will include reviewing an internal investigation by Staffordshire Police Professional Standards Department of an allegation of perjury during the court case.
"We will ensure our review is thorough and I hope to be in a position to answer the specific matters of which Mrs Hulse complains," he said.