The state's corruption watchdog is set to hold public hearings into the police handling of the investigation surrounding the 1998 murders of policemen Gary Silk and Rodney Miller.

The Independent Broad-Based Anti-Corruption Commission announced on Wednesday it would hold public hearings into "alleged serious misconduct" by Victoria Police officers relating to certain aspects of the investigation into the high profile murders.

Jason Roberts was convicted alongside Bandali Debs of murdering Sergeant Silk and Senior Constable Miller, who were gunned down in a Moorabbin street on August 16, 1998.

However, Roberts claims he was not there when the officers were shot.