Where a car knocks into a bicycle on a public road is there a presumption of guilt against the motorist. My friend, who was cycling with a number of others from a bicycle club, pulled up at a crossroads beside a car waiting to turn right. A van came up from behind and as the car moved slowly to the right the van driver accelerated forward to pass the group of cyclists at the crossroad and hit my friend's bicycle, shooting him over the handlebars into the road. He suffered very serious injuries, including a broken shoulder and pelvis. The surgeon told him that if he hadn't been wearing a cycle helmet he would most likely have been killed. My friend's helmet included a dashcam which (he states) clearly shows that the van driver was too impatient to wait for the car driver to finish turning right but the police aren't interested and will take no action. Is there any way of getting a review of the police decision not to prosecute the van driver?