Medical Defence Union Offering members guidance, support and defence if their clinical competence or care of patients is questioned. Led and staffed by doctors with real-life experience of the challenges faced in practice. Our rapid response to requests for assistance and continuity of support means you can practise with confidence because we are on your side and by your side. Our medico-legal team is available between 8am and 6pm Monday to Friday and provides an on-call service for medico-legal emergencies or urgent queries 24 hours a day, 365 days a year. Download the MDU app today.