A DOCTOR on trial for causing death by dangerous driving said he rushed back to help the motorbike rider, a court heard.

Dr Vincent Hamlyn, aged 33, of Sedbury Hill, Tutshill near Chepstow, is on trial for death by dangerous driving at Cardiff Crown Court. He denies causing the death of Kevin Morgan, aged 60, from Cwmbran, on June 21 of last year.

The collision took place on the A449 off the Coldra roundabout. Hamlyn, an anaesthetist, was driving a black BMW Z4 and Mr Morgan was riding a white Kawasaki motorbike.

PC Matt Richley, of Gwent Police, gave evidence today. He was the officer in the case and read transcripts from police interviews with Hamlyn from 8.46pm the evening of the incident.

The court heard that Hamlyn had picked up his car from the garage in Newport just before 11am before making his way along the SDR towards the Coldra roundabout.

He said he was in the third lane from the left marked A48 (E) and A449. He said he stopped at the first set of traffic lights and then a second set of traffic lights.

At the third set of traffic lights under the bridge he saw two motorbikes in his rear view mirror coming up from behind him. He said one of the bikes was a white bike which came to the side of him as though they were going to carry on around the roundabout.

He said he pulled away and was going about 30mph before increasing speed to 45mph before approaching the de-restriction speed sign on the A449.

He said he looked left to merge with traffic on the left but did not look to his right.

He said: "I felt an impact at the back. I felt it wasn't hard - it was a fairly gentle jolt and then a crunching. I looked in the drivers side mirror and saw the bike sliding across the road.

"I couldn't see the man himself and that is when I pulled in."

He said the hard shoulder wasn't big enough so he pulled up the road to park safely and called an ambulance before making his way back to the bike.

He told police that he had a quick glance at the rear of his car and saw so no signs of damage.

He said: "I just rushed back to see if any help I could offer."

Hamlyn and a GP who had stopped to help took it in turns to carry out chest compressions before the ambulance arrived.

The interviewing detectives asked Hamlyn if he was nervous driving on the busy roundabout to which he replied no. He said he used to use it everyday when he lived in Caerwent and worked at the Royal Gwent Hospital.

He said he has been driving for around 10 to 11 years and has a clean licence.