Biometric templates may be stored in the memory of readers, limiting the number of users by the reader memory size (there are reader models that have been manufactured with a storage capacity of up to 50,000 templates). User templates may also be stored in the memory of the smart card, thereby removing all limits to the number of system users (finger-only identification is not possible with this technology), or a central server PC can act as the template host. For systems where a central server is employed, known as "server-based verification", readers first read the biometric data of the user and then forward it to the main computer for processing. Server-based systems support a large number of users but are dependent on the reliability of the central server, as well as communication lines.
A major advantage of live phone readings versus in-person appointments is that there is no chance that the reader can cheat. During a face-to-face session, a reader can gather many clues and insights about a person based on demeanour, clothing, jewellery, hair, make-up, and overall attitude and appearance. The psychic might draw conclusions about someone based on those clues and form the reading around those things.
I googled "Indigo Crystal Child." It's a nice idea: spirits from other worlds coming to this planet to save it. It sounds like the sort of well-illustrated children's book fantasy you could buy for anyone's baby shower, no matter their faith. But of all the things my trusted psychic has said, this one shook my faith in her. Maybe I just lack self-esteem. Maybe my third eye is cloudy (as she has insisted). Maybe I should drop this aversion and take more yoga, try another juice cleanse, reread The Alchemist, until I can look you in the eye and say with pride, "Hi, I'm Angela. I'm an Indigo Crystal Child, and I'm one seriously legit psychic."
In March 1902 in Berlin, police officers interrupted a séance of the German apport medium Frau Anna Rothe. Her hands were grabbed and she was wrestled to the ground. A female police assistant physically examined Rothe and discovered 157 flowers as well as oranges and lemons hidden in her petticoat. She was arrested and charged with fraud. Another apport medium Hilda Lewis known as the "flower medium" confessed to fraud.
In 1908 at a hotel in Naples, the psychical researchers W. W. Baggally, Hereward Carrington and Everard Feilding attended a series of séances with Eusapia Palladino. In a report they claimed that genuine supernatural activity had occurred in the séances, this report became known as the Feilding report. In 1910, Feilding returned to Naples, but this time accompanied with the magician William S. Marriott. Unlike the 1908 sittings, Feilding and Marriott detected her cheating, just as she had done in America. Her deceptions were obvious. Palladino evaded control and was caught moving objects with her foot, shaking the curtain with her hands, moving the cabinet table with her elbow and touching the séance sitters. Milbourne Christopher wrote regarding the exposure "when one knows how a feat can be done and what to look for, only the most skillful performer can maintain the illusion in the face of such informed scrutiny."