Ultimate issue (law)

Ultimate issue (law)

An ultimate issue in criminal law is a legal issue at stake in the prosecution of a crime for which an expert witness is providing testimony. For example, if the issue is the defendant's mental state at the time of the offense, the ultimate issue would be the defendant's sanity or insanity during the commission of the crime. In the past, expert witnesses were allowed to give testimony on ultimate issues, such as the applicability of the insanity defense to a particular defendant. However, after the 1982 trial of John Hinckley, Jr., the rules of evidence were changed. Now in the United States, federal and state rules of evidence specifically rule out legal conclusions drawn by expert witnesses in their testimony. [cite web
title=Barring ultimate issue testimony
] However, a large amount of judicial discretion is allowed in how this rule is applied, resulting in an uneven application of rules across jurisdictions.cite web
title=Commentary: Deceptions to the Rule on Ultimate Issue Testimony
publisher=Journal of the American Academy of Psychiatry and the Law


The Federal Rules do not say what falls within the definition of an "ultimate issue." However, a long history case law on the subject suggests that an expert witness runs afoul if he uses the same words (words with legal meaning) that will ultimately be presented to the jury. One court excluded a psychologist's evidence on the credibility of prosecution's witness on the grounds that it amounted to an "ultimate opinion", meaning this was an opinion that could only be properly reached by a jury.

The expert witness testimony is confined to giving an opinion on whether the defendant had a serious mental disorder at the time of the offense, and explaining the symptoms and characteristics of any diagnosis given, including other testimony regarding the defendant's mental status ("mens Rea") and motivation. The expert witness cannot make a statement addressing the issue of whether the legal test for insanity has been met. That is left to the judge and jury. The restriction of expert opinion on ultimate issues includes any testimony on the criminal elements, including testimony that would bear on the mental state of the defendant relevant to ultimate legal decisions to be decided by the triers of fact. [cite web
title=639 Insanity -- Scope of Expert Testimony
publisher=US Department of Justice


The Federal Rules of Evidence adopted in 1975 (and their state counterparts) expressly allowed expert testimony to include statements on ultimate issues if such statements will be helpful to the judge or jury. In 1984, Federal Rule of Evidence 704(b) was added following the trial of John Hinckley, Jr. for the attempted assassination of U.S. President Ronald Reagan. The changes were in part a result of the public backlash due to Hinckley's successful use of the insanity defense. [cite web
title=The John Hinkley Trial and its Effect on the Insanity Defense]
] These changes, in particular Rule 704(b), put limits on expert witness testimony. [cite web
title=639 Insanity -- Scope of Expert Testimony - Rule 704. Opinion on ultimate issue

The new rules of evidence restrict the testimony allowed on the ultimate issue. Rule 704(b) states that the mental health expert may testify to the defendant's mental disorder or defect and its symptoms, but may not offer a conclusion on an ultimate issue such as the sanity or insanity of the defendant. The expert witness must refrain from merely giving the jury a conclusion that pertains to the legal issues at hand and cannot testify to legal conclusions (ultimate issues), the rationale being that mental health professional are not attorneys. Judicial discretion remains in determining the limits of testimony as well, such that any testimony that "wastes time' or is irrelevant can be barred.cite web
month=November 12
title=Expert Witnesses
] cite web
url=http://touchngo.com/lglcntr/ctrules/evcom/EVC-54.htm Rule 704
title=Opinion on Ultimate Issue
] The rationale for this restriction was stated in the legislative history of the rule as the following:The result is that large gray areas remain regarding exactly what testimony is allowed. [cite web
title=An Opinion on Ultimate Issues
] For example, the Third Circuit Court of Appeals in "United States v. Rutland" ruled that testimony from "an extraordinarily qualified handwriting expert" was admissible on the "ultimate issue of authorship of key documents". [cite web
title=United States of America v. Chris Rutland
publisher=American Bar Association

Jeffrey R. MacDonald trial

An example of how this change in the rules of evidence can affect trial testimony is demonstrated in an analysis of the 1979 trial of Jeffrey R. MacDonald, a physician, for the murder of his wife and children, if his trial occurred today. In that trial, an expert testified in support of the defense hypothesis that someone else committed the murders. Expert testimony that the defendant had a "personality configuration inconsistent with the outrageous and senseless murders of [his] family" was not allowed under the rules of evidence in effect at the time because it was considered confusing and misleading. However, under Rule 704(b) this character testimony would not be barred since testimony regarding "personality configuration" is general psychological evidence unrelated to any ultimate issues such as intent or malice aforethought. Also, an expert witness would not be in violation of 704(b) in use today if he gave testimony regarding the defendant's positive behaviors, such as acting like a loving father and husband, which might create the impression that he was not capable of committing such a crime, but is an opinion unrelated to guilt.


Rules of evidence are meant to screen what evidence the jury may consider to prevent testimony that is mere opinion from infringing upon the territory of jury decision-making. Rule 704(b) reversed the trend toward permitting the testimony of experts on the ultimate issue. Since so much faith is placed in the jury system, limiting what a jury can consider narrows the jury's options. As in the past, lay witnesses may testify to facts only.

The result of rule 704(b) is to prevent expert witnesses such as psychologists and psychiatrists from testimony regarding how the defendant's mental state affected an element of the crime or an element of the defense. It has been ruled that 704(b) bans expert opinions on mental states affecting other elements, not only on questions of insanity, but also on questions on all mental states forming an element of a crime or defense such as premeditation in a murder case or specific intent and mens rea. Much of the testimony on psychological issues can be meaningless without professional conclusions rendered. Thus expert witnesses have become less useful to judges, and especially to juries, because the result is indirect and incomplete testimony without a clear summation of the expert's viewpoint.

ee also

*Capital Jury Project


External links

* [http://www.pacode.com/secure/data/225/chapter7/s704.html Pennsylvania Code - Rule 704. Opinion on Ultimate Issue]
* [http://www.lawyertrialforms.com/EXPERTS/EX03_UltimateQuestions.pdf Ask your expert the ultimate liability questions]
* [http://www.courts.state.nh.us/rules/evid/evid-704.htm Rule 704. Opinion on Ultimate Issue]
* [http://www.usdoj.gov/usao/eousa/foia_reading_room/usam/title9/crm00639.htm 639 Insanity -- Scope of Expert Testimony]
* [http://www.armfor.uscourts.gov/digest/2005dig/IIIC7.htm Evidence: Expert/Scientific Testimony]
* [http://www.armfor.uscourts.gov/digest/2003dig/IIIC15.htm Core Criminal Law Subjects - Evidence: Opinion Testimony]
* [http://books.google.com/books?id=__YTiZIV0KMC&pg=RA1-PA583&lpg=RA1-PA583&dq=ultimate+issue+testimony&source=web&ots=LtBUVm9gMn&sig=4Y8Ltt59qeKQow_mso-tfbgqYSM Cleary and Graham's Handbook of Illinois Evidence]

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