Dr. Melvyn Willin has researched alleged paranormal phenomena for over twenty-five years and has two doctorates in related aspects of the subject. He is the Honorary Archives Liaison Officer and a Council member of the Society for Psychical Research and a consultant to the Ghost Club. He has published many articles and several books on the theme of psychical research. He has been the custodian of the 'Enfield Poltergeist' tapes since the deaths of Maurice Grosse and Guy Lyon Playfair and he has transcribed and digitized the complete collection. He knew both men personally and shared many hours of conversation with them about the case.