^ "Spiritism is not a religion but a science", as the famous French astronomer Camille Flammarion said in Allan Kardec's Eulogy on April 2, 1869, in Death and Its Mystery – After Death. Manifestations and Apparitions of the Dead; The Soul After Death Translated by Latrobe Carroll (London: Adelphi Terrace, 1923), archive version at Allan Kardec eulogy
In 2013 Rose Marks and members of her family were convicted of fraud for a series of crimes spanning 20 years entailing between $20 and $45 million. They told vulnerable clients that to solve their problems they had to give the purported psychics money and valuables. Marks and family promised to return the cash and goods after "cleansing" them. Prosecutors established they had no intent to return the property.
Senses used by mental mediums are sometimes defined differently from in other paranormal fields. A medium is said to have psychic abilities but not all psychics function as mediums. The term clairvoyance, for instance, may include seeing spirit and visions instilled by the spirit world. The Parapsychological Association defines "clairvoyance" as information derived directly from an external physical source.