Cyril Ronald Vosper (7 June 1935 – 4 May 2004) was an anti-cult leader,[1] former Scientologist and later a critic of Scientology, deprogrammer, and spokesperson on men's health.
[2] In 1956, he was personally cited by L. Ron Hubbard for his "test work and the wonderful results [he has] obtained on pcs [preclears] processed under various directives.
The book contained a significant amount of inside information about Scientology including quotations from a number of Hubbard's works.
According to him, a copy of his manuscript disappeared from his lodgings and, while on holiday in Spain, he was questioned by the police when they opened a parcel addressed to the place in which he was staying, containing obscene caricatures of the Spanish dictator General Franco.
In November 1987, while a committee member of the British anti-cult group Family, Action, Information, Rescue (FAIR), he was convicted in Munich on charges of false imprisonment and causing bodily harm to German Scientologist Barbara Schwarz in the course of a deprogramming attempt.