Two police officers in a marked van who followed two teenage boys on an electric bike before it crashed killing them both have been served with gross misconduct notices.
Harvey Evans, 15, and 16-year-old Kyrees Sullivan, who had been "best friends" since they were young children, lost their lives after a crash in Ely, Cardiff last month.
The officers, who were driver and passenger in a marked police van, have been identified after analysis of CCTV footage of the car driving behind the boys’ electric bike a short time prior to the fatal collision.