Dr David Baron is a psychiatrist based in Melbourne, Australia. Dr Baron qualified in the 1960s, and in the early 1970s established and ran an inpatient psychiatric unit for children and adolescents in Sunnyside Hospital, Christchurch. Dr Baron will give evidence on how he operated his unit and the treatment methods used. He will also provide his own reflections on working as a psychiatrist in New Zealand during the 1970s and how medical practice then compares with contemporary standards.