Father-of-two Sheku Bayoh, 31, was held following an incident in Hayfield Road, Kirkcaldy, on 3 May.
He died of suspected asphyxia after being detained by officers responding to reports he had brandished a knife and attacked cars in the area.
Relatives of Mr Bayoh claim police told them five versions of what happened.
No official cause of death has been confirmed and the investigation into the incident is continuing.
The Police Investigations and Review Commissioner (PIRC) is probing his death.
The independent commissioner has scoured CCTV footage taken from Hayfield Road and Hendry Road in Kirkcaldy on 3 May.
Investigators want to speak to drivers of nine vehicles which were seen in the area between 07:10 and 07:25, and who "might have information relevant to the ongoing investigation".
The PIRC has also released CCTV video clips which can be viewed from its website.
The images show:
Investigators looking into the death of a Fife man in police custody are trying to trace the drivers of nine cars seen in the area at the time of his arrest.