The Council finds that recollections obtained during hypnosis can involve confabulations and pseudomemories and not only fail to be more accurate, but actually appear to be less reliable than nonhypnotic recall. The use of hypnosis with witnesses and victims may have serious consequences for the legal process when testimony is based on material that is elicited from a witness who has been hypnotized for the purposes of refreshing recollection.
Scientific Status of Refreshing Recollection by the Use of Hypnosis. JAMA. 1985;253(13):1918–1923. doi:10.1001/jama.1985.03350370114035