The trial of a man accused of causing two deaths in a horror crash is due to begin at Bournemouth Crown Court today .
Richard Husband has pleaded not guilty to causing the deaths of a paramedic and an elderly man by careless driving.
Paramedic Gillian Randall, 42, and 88-year-old Francis Ironside were killed in the collision after the ambulance veered off the road and into a tree.
Mr Ironside's 64-year-old son David, who was travelling in the back of the ambulance, and paramedic Richard Riley, 32, suffered serious injuries.
The trial is expected to last for at least a week.