Hi Jocie6,
Just read about your sister. Hope you've received the help you, your sister and family need so far.
Louise Samways, a psychologist in Victoria, Australia, wrote a book "Dangerous Persuaders" and is fully aware of all the techniques these cult use i.e. hypnosis, thought reform and mind control etc. Her contact details I believe are -
183 Wattletree Road, Malver
Forum:
Recovery from Destructive Cults and Groups