Page "lore" Paragraph 415

One way to do this is by `` proxy sittings '', wherein the person seeking a message does not himself meet with the medium but is represented by a substitute, the proxy sitter.

If the latter knows nothing about the absent sitter except his name ( given by the experimenter ), he cannot possibly give any clues, conscious or unconscious, far less ask leading questions.

All he can do is to be an objective and careful questioner, seeking to help the sensitive in clarifying and making more specific her paranormal impressions.