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Orne, M.T. The use and misuse of hypnosis in court. International ...

Orne, M.T. The use and misuse of hypnosis in court. International ...

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<strong>Orne</strong> 1979 IJCEHhttp://www.sas.upenn.edu/psych/history/orne/orneijceh19794311341.html15 de 23 19/03/2012 17:24331 USE AND MISUSE OF HYPNOSIS IN COURTwould be th<strong>in</strong>k<strong>in</strong>g about tell<strong>in</strong>g the truth, how good it would feel to tell the truth, <strong>and</strong> that she was go<strong>in</strong>g totell the truth. With<strong>in</strong> a week after the session, the sister called the police <strong>and</strong> told them how the defendanthad <strong>of</strong>ten choked her, that he seemed to enjoy it, <strong>and</strong> that one time shortly after the murder he waschok<strong>in</strong>g her <strong>and</strong> said someth<strong>in</strong>g to the effect, "If you don't behave, the same th<strong>in</strong>g can happen to you thathappened to Sweetie Pie." When she asked whether he had killed "Sweetie Pie," he allegedly broke downcry<strong>in</strong>g <strong>and</strong> said that he had not <strong>in</strong>tended to but admitted that he did.<strong>The</strong> case aga<strong>in</strong>st the defendant was primarily based upon the sister's hearsay testimony which becameavailable shortly after the hypnotic session. After a lengthy hear<strong>in</strong>g, the <strong>court</strong> ruled that as a matter <strong>of</strong> lawshe could not testify before a jury beca<strong>use</strong>, thanks to the hypnotic session, the presumed memory waslikely to have been created rather than remembered. It is unlikely that anyone will ever know for certa<strong>in</strong>whether the defendant was or was not responsible for the murder. <strong>The</strong>re was no doubt <strong>in</strong> the sister's m<strong>in</strong>d,however, as to the k<strong>in</strong>d <strong>of</strong> memory which was wanted, <strong>and</strong> the sister was amply motivated to testifyaga<strong>in</strong>st the defendant. She had cont<strong>in</strong>ued to live with the defendant, supposedly know<strong>in</strong>g that he was amurderer, for many months until he rejected her. Consequently, her testimony would have been totallydiscounted if it had not come after the hypnotic session. <strong>The</strong> <strong>court</strong> recognized the danger <strong>of</strong> permitt<strong>in</strong>g<strong>hypnosis</strong> to be <strong>use</strong>d <strong>in</strong> a context where it is more likely to create a memory than to refresh it.Whereas <strong>in</strong> the first case the identity <strong>of</strong> the defendant became known to the victim dur<strong>in</strong>g a pretrialhear<strong>in</strong>g, <strong>and</strong> <strong>in</strong> the second case the nature <strong>of</strong> the memory was shaped by conversations with the police<strong>of</strong>ficers, with the sister, <strong>and</strong> particularly by the way the hypnotic session was conducted, it is equallypossible for the suggestion about what to recall to come from entirely different sources unrelated to <strong>and</strong>long before <strong>hypnosis</strong>. For example, <strong>in</strong> the M<strong>in</strong>nesota case <strong>of</strong> State v. Mack (1979), a physician <strong>in</strong>sist<strong>in</strong>gthat a laceration must have been made by a knife led to a total reorganization <strong>of</strong> an apparent victim'smemory about how she had acquired an <strong>in</strong>ternal wound. In other cases, the media have provided thecritical <strong>in</strong>formation, while <strong>in</strong> still others, the manner <strong>in</strong> which a l<strong>in</strong>eup was conducted facilitated thecreation <strong>of</strong> "memories" at hypnotic sessions conducted at a later date (e.g., State v. Peterson, 1979).In addition to crim<strong>in</strong>al cases, it is not uncommon to f<strong>in</strong>d someth<strong>in</strong>g <strong>of</strong> this k<strong>in</strong>d <strong>in</strong> civil cases where an<strong>in</strong>dividual is helped by <strong>hypnosis</strong> to remember details <strong>of</strong> an accident he had been unable to recallpreviously. By the time <strong>hypnosis</strong> is carried out, it is generally clear to the subject which <strong>of</strong> the possibleevents that could have occurred would be most332 MARTIN T. ORNEhelpful to his case. Though it is possible that accurate <strong>in</strong>formation is recovered, the important effects thatmotivation can exert on memory--hypnotically enhanced or otherwise--must be taken <strong>in</strong>to account <strong>in</strong>assess<strong>in</strong>g the "memories" that are obta<strong>in</strong>ed.To Affirm the Reliability <strong>of</strong> the Witness's Statement or to Create an Apparently Reliable WitnessMany witnesses are unreliable <strong>in</strong> the sense that they tell somewhat different stories each time they areasked to tell what had occurred. <strong>The</strong>se differences may relate to important details <strong>of</strong> the crime. <strong>The</strong>adversary system upon which Anglo-Saxon justice is based is particularly effective <strong>in</strong> unmask<strong>in</strong>g theunreliability <strong>of</strong> witnesses by means <strong>of</strong> cross-exam<strong>in</strong>ation before a jury.<strong>The</strong> effect <strong>of</strong> hypnotiz<strong>in</strong>g witnesses <strong>of</strong> this k<strong>in</strong>d, presumably to help refresh their memories, is generallydramatic. Even if the subject is not particularly responsive to <strong>hypnosis</strong>, review<strong>in</strong>g the events <strong>in</strong> thehypnotic context <strong>and</strong> hav<strong>in</strong>g the memories legitimized by the hypnotist generally fixes one particularversion <strong>of</strong> the testimony <strong>in</strong> the witness's m<strong>in</strong>d which is then faithfully <strong>and</strong> reliably reproduced every time.In these cases, <strong>hypnosis</strong> does not serve to produce any new <strong>in</strong>formation, but the procedure can bolster awitness whose credibility would easily have been destroyed by cross-exam<strong>in</strong>ation but who now becomes

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