First and foremost have both accidents been recorded in his employers Accident Book/Record. This must be done by law which will cover him for any unforseen injuries/illnesses relating to his accident should there be any future problems. Re employers liability, first aid must be given at the place of work and again recorded, time, date, who administered treatment and what was done and what advice given. As for getting him to hospital, I would have thought, dependant on severity, they would have to supply necessary transport whether it be taxi, ambulance or staff car. However not sure whether this is laid down in H&S law or just something that a reasonable, responsible employer would do.