In 1946, Tizard remained in the defence establishment, chairing the Defence Research Policy Committee. In 1948, Tizard returned to the Ministry of Defence as Chief Scientific Adviser, a post he held until 1952. The Ministry of Defence's Nick Pope states that: The Ministry of Defence’s UFO Project has its roots in a study commissioned in 1950 by the MOD's then Chief Scientific Adviser, the great radar scientist Sir Henry Tizard. As a result of his insistence that UFO sightings should not be dismissed without some form of proper scientific study, the department set up arguably the most marvellously-named committee in the history of the civil service, the Flying Saucer Working Party (FSWP).