Prof Dalton was appointed consultant in obstetrics and gynaecology at Addenbrooke’s Hospital in 1983. Apart from carrying out clinical work in high-risk obstetrics and in general gynaecology, he also served as Cambridge's senior examiner in obstetrics and gynaecology. Until 2014 he often chaired GMC (and on occasion MPTS) Fitness to Practise Panels.
He has over 25 years' experience of medico-legal work, for both Defendants and Claimants, and is jointly instructed in some cases. He advises on clinical negligence and personal injury, and has given evidence in civil, criminal, family and coroner's courts. Considerable experience in cerebral palsy, in stillbirth, in maternal death, in the sequelae of road traffic accidents, and in (the obstetrical aspects of) cases in which non-accidental injury of babies postnatally is suspected.
He has a PhD in fetal physiology, an LLM (with Distinction) in medical law, and the Diploma in Forensic Medical Science.