Peter Sharp, 42, was driving a black Jaguar XJ without a valid licence on January 17 when he was involved in a collision with another vehicle on the B1090 near Kings Ripton. The collision caused both cars to leave the road. Sharp failed a roadside breath test with a reading of 120 micrograms - more than three times the legal limit. He was taken to hospital following the incident, where he refused to provide a blood sample because the doctor was American. Sharp, of Ferndown Drive, Godmanchester, admitted failing to provide a specimen for analysis, driving otherwise than in accordance with a licence, without insurance or a valid MOT certificate for the vehicle. He appeared at Peterborough Crown Court on September 24 where he was sentenced to six months in prison. PC Ritchie Ashmead said: "There were no medical grounds for Sharp refusing to provide a blood sample at hospital. The discrimination he showed towards the doctor based on nationality was totally unacceptable. "Drink driving significantly increases your chances of being involved in a serious or even fatal collision. It puts both your life and that of other innocent road users at risk." If you wish to report drink driving, Cambridgeshire police operates a dedicated, confidential hotline for members of the public to call and report incidents. The hotline number is: 0800 032 0845.