The black police vehicle came to an "emergency stop" in a lane on the westbound carriageway of the A47 - between its junctions with the A146 and the A140 - at 11.55am on October 6. Charlie Storkey, 20, of Beverley Road, Norwich, was charged with two counts of attempted murder, being concerned in the supply of crack cocaine and heroin in Clacton-on-Sea between May 3 and July 17 this year, and possession of cannabis. He was remanded into custody until his appearance at Norwich Crown Court. READ MORE: Woman caught drink driving home from shop after police receive tip-offA spokeswoman for the Crown Prosecution Service has now confirmed Storkey's attempted murder charges were dropped as there was "not enough evidence for a realistic prospect of conviction". "We have a duty to ensure every prosecution is effective, independent, and fair," she explained.