An introduction to hypnosis notes that hypnotized persons are highly suggestible and often invent requested information that memory cannot supply. The discussion also indicates that it is possible both to lie under hypnosis and to feign the hypnotic state. The most technical part of the report reviews scientific evidence relevant to the forensic applications of hypnosis. Critical issues raised by forensic hypnosis are then considered, including ways in which it might be used, who should conduct the hypnotic interview, and what induction and questioning techniques should be used. Consideration of modern case law on the admissibility of hypnotically refreshed eyewitness testimony indicates that the courts agree that such testimony should not be admissible. The report argues for the use of hypnosis only in investigations; guidelines for such use are presented to cover the qualifications and knowledge of the hypnotist, videotape recordings of hypnosis sessions, limitations on those present during the interview, prehypnosis evaluation, appropriate hypnotic induction and memory retrieval techniques, communication with the hypnotist, posthypnosis discussion, clinical followup, technical considerations, and precautions in hypnotizing suspects. Sixteen footnotes, 89 references, and a glossary are provided.