Teare began his career as a lecturer in forensic medicine at
St Bartholomew's Hospital Medical College. In 1963 he became reader at St George's Hospital, where he established a department of Forensic Medicine, and eventually professor of forensic medicine at
Charing Cross Hospital Medical School, a post he held until retirement in 1975. Teare was also a lecturer at the
Metropolitan Police College, Hendon, and served as President of the
Medical Defence Union. He was a Fellow of the
Royal College of Physicians and of the
Royal College of Pathologists, and served as President of the British Association in Forensic Medicine in 1962. Teare published the first modern description of
hypertrophic cardiomyopathy in 1958. Today this disease is considered the leading cause of
sudden cardiac death in young athletes. In 1973, Teare carried out the
post mortem on
Bruce Lee, as well as
Jimi Hendrix's in 1970. Teare supervised the post mortem of
Brian Epstein in 1967. Together with
Keith Simpson and
Francis Camps, Teare was one of the "Three Musketeers", who dealt with almost all the suspicious deaths in the London area. He was called to give evidence in many high-profile criminal investigations, such as the murder of Beryl Evans and her baby Geraldine in the
Timothy Evans case. Teare's accident investigations included the
Harrow and Wealdstone rail crash, which killed 112 people in 1952, and some of the victims of
South African Airways Flight 201. ==Later life and death==