Rule 606

Competency of Juror as Witness

(a) At the trial. A member of the jury may not testify as a witness before that jury in the trial of the case in which the juror is sitting. If the juror is called so to testify, the opposing party shall be afforded an opportunity to object out of the presence of the jury.

(b) Inquiry into validity of verdict or indictment. Upon an inquiry into the validity of a verdict or indictment, a juror may not testify as to any matter or statement occurring during the course of the jury’s deliberations or to the effect of anything upon that or any other juror’s mind or emotions as influencing the juror to assent or to dissent from the verdict or indictment or concerning the juror’s mental processes in connection therewith, except that a juror may testify on the question whether extraneous prejudicial information was improperly brought to the jury’s attention or whether any outside influence was improperly brought to bear upon any juror. Nor may a juror’s affidavit or evidence of any statement by him concerning a matter about which the juror would be precluded from testifying be received for these purposes.

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Note (Federal Judicial Center)

The rule enacted by the Congress is the rule prescribed by the Supreme Court, amended only by the addition of the concluding phrase "for these purposes." The bill originally passed by the House did not contain in the first sentence the prohibition as to matters or statements during the deliberations or the clause beginning "except."

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Note

Gender-neutralizing amendments were made to this rule in 1987.

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606(a) At the Trial

Advisory Committee’s Note

Subdivision (a). The considerations which bear upon the permissibility of testimony by a juror in the trial in which he is sitting as juror bear an obvious similarity to those evoked when the judge is called as a witness. See Advisory Committee’s Note to Rule 605. The judge is not, however, in this instance so involved as to call for departure from usual principles requiring objection to be made; hence the only provision on objection is that opportunity be afforded for its making out of the presence of the jury. Compare Rule 605.

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606(b) Inquiry into Validity of Verdict or Indictment

Advisory Committee’s Note

Subdivision (b). Whether testimony, affidavits, or statements of jurors should be received for the purpose of invalidating or supporting a verdict or indictment, and if so, under what circumstances, has given rise to substantial differences of opinion. The familiar rubric that a juror may not impeach his own verdict, dating from Lord Mansfield’s time, is a gross oversimplification. The values sought to be promoted by excluding the evidence include freedom of deliberation, stability and finality of verdicts, and protection of jurors against annoyance and embarrassment. McDonald v. Pless, 238 U.S. 264, 35 S. Ct. 785, 59 L. Ed. 1300 (1915). On the other hand, simply putting verdicts beyond effective reach can only promote irregularity and injustice. The rule offers an accommodation between these competing considerations.

The mental operations and emotional reactions of jurors in arriving at a given result would, if allowed as a subject of inquiry, place every verdict at the mercy of jurors and invite tampering and harassment. See Grenz v. Werre, 129 N.W.2d 681 (N.D. 1964). The authorities are in virtually complete accord in excluding the evidence. Fryer, Note on Disqualification of Witnesses, Selected Writings on Evidence and Trial 345, 347 (Fryer ed. 1957); Maguire, Weinstein, et al., Cases on Evidence 887 (5th ed. 1965); 8 Wigmore 2349 (McNaughton Rev. 1961). As to matters other than mental operations and emotional reactions of jurors, substantial authority refuses to allow a juror to disclose irregularities which occur in the jury room, but allows his testimony as to irregularities occuring outside and allows outsiders to testify as to occurrences both inside and out. 8 Wigmore 2354 (McNaughton Rev. 1961). However, the door of the jury room is not necessarily a satisfactory dividing point, and the Supreme Court has refused to accept it for every situation. Mattox v. United States, 146 U.S. 140, 13 S. Ct. 50, 36 L. Ed. 917 (1892).

Under the federal decisions the central focus has been upon insulation of the manner in which the jury reached its verdict, and this protection extends to each of the components of deliberation, including arguments, statements, discussions, mental and emotional reactions, votes, and any other feature of the process. Thus testimony or affidavits of jurors have been held incompetent to show a compromise verdict, Hyde v. United States, 225 U.S. 347, 382 (1912); a quotient verdict, McDonald v. Pless, 238 U.S. 264 (1915); speculation as to insurance coverage, Holden v. Porter, 405 F.2d 878 (10th Cir. 1969), Farmers Coop. Elev. Assn. v. Strand, 382 F.2d 224, 230 (8th Cir. 1967), cert. denied, 389 U.S. 1014; misinterpretation of instructions, Farmers Coop. Elev. Assn. v. Strand, supra; mistake in returning verdict, United States v. Chereton, 309 F.2d 197 (6th Cir. 1962); interpretation of guilty plea by one defendant as implicating others, United States v. Crosby, 294 F.2d 928, 949 (2d Cir. 1961). The policy does not, however, foreclose testimony by jurors as to prejudicial extraneous information or influences injected into or brought to bear upon the deliberative process. Thus a juror is recognized as competent to testify to statements by the bailiff or the introduction of a prejudicial newspaper account into the jury room, Mattox v. United States, 146 U.S. 140 (1892). See also Parker v. Gladden, 385 U.S. 363 (1966).

This rule does not purport to specify the substantive grounds for setting aside verdicts for irregularity; it deals only with the competency of jurors to testify concerning those grounds. Allowing them to testify as to matters other than their own inner reactions involves no particular hazard to the values sought to be protected. The rule is based upon this conclusion. It makes no attempt to specify the substantive grounds for setting aside verdicts for irregularity.

See also Rule 6(e) of the Federal Rules of Criminal Procedure and 18 U.S.C. 3500, governing the secrecy of grand jury proceedings. The present rule does not relate to secrecy and disclosure but to the competency of certain witnesses and evidence.

 

Report of Senate Judiciary Committee

Subdivision (b). As adopted by the House, this rule would permit the impeachment of verdicts by inquiry into, not the mental processes of the jurors, but what happened in terms of conduct in the jury room. This extension of the ability to impeach a verdict is felt to be unwarranted and ill-advised.

The rule passed by the House embodies a suggestion by the Advisory Committee of the Judicial Conference that is considerably broader than the final version adopted by the Supreme Court, which embodied long-accepted Federal law. Although forbidding the impeachment of verdicts by inquiry into the jurors’ mental processes, it deletes from the Supreme Court version the proscription against testimony "as to any matter or statement occurring during the course of the jury’s deliberations." This deletion would have the effect of opening verdicts up to challenge on the basis of what happened during the jury’s internal deliberations, for example, where a juror alleged that the jury refused to follow the trial judge’s instructions or that some of the jurors did not take part in deliberations.

Permitting an individual to attack a jury verdict based upon the jury’s internal deliberations has long been recognized as unwise by the Supreme Court. In McDonald v. Pless, the Court stated:

[L]et it once be established that verdicts solemnly made and publicly returned into court can be attacked and set aside on the testimony of those who took part in their publication and all verdicts could be, and many would be, followed by an inquiry in the hope of discovering something which might invalidate the finding. Jurors would be harassed and beset by the defeated party in an effort to secure from them evidence of facts which might establish misconduct sufficient to set aside a verdict. If evidence thus secured could be thus used, the result would be to make what was intended to be a private deliberation, the constant subject of public investigation—to the destruction of all frankness and freedom of discussion and conference.

As it stands then, the rule would permit the harassment of former jurors by losing parties as well as the possible exploitation of disgruntled or otherwise badly-motivated ex-jurors.

Public policy requires a finality to litigation. And common fairness requires that absolute privacy be preserved for jurors to engage in the full and free debate necessary to the attainment of just verdicts. Jurors will not be able to function effectively if their deliberations are to be scrutinized in post-trial litigation. In the interest of protecting the jury system and the citizens who make it work, Rule 606 should not permit any inquiry into the internal deliberations of the jurors.

Conference Report

Subdivision (b). Rule 606(b) deals with juror testimony in an inquiry into the validity of a verdict or indictment. The House bill provides that a juror cannot testify about his mental processes or about the effect of anything upon his or another juror’s mind as influencing him to assent to or dissent from a verdict or indictment. Thus, the House bill allows a juror to testify about objective matters occurring during the jury’s deliberation, such as the misconduct of another juror or the reaching of a quotient verdict. The Senate bill does not permit juror testimony about any matter or statement occurring during the course of the jury’s deliberations. The Senate bill does provide, however, that a juror may testify on the question whether extraneous prejudicial information was improperly brought to the jury’s attention and on the question whether any outside influence was improperly brought to bear on any juror.

The Conference adopts the Senate amendment. The conferees believe that jurors should be encouraged to be conscientious in promptly reporting to the court misconduct that occurs during jury deliberations.


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