Source: https://www.ucmjdefense.com/resources/evidence/witnesses/rule-608-untruthful-character.html
Timestamp: 2019-04-18 15:22:08+00:00

Document:
Opinion and reputation evidence of character. The credibility of a witness may be attacked or supported by evidence in the form of opinion or reputation, but subject to these limitations: (1) the evidence may refer only to character for truthfulness or untruthfulness, and (2) evidence of truthful character is admissible only after the character of the witness for truthfulness has been attacked by opinion or reputation evidence or otherwise.
Specific instance of conduct. Specific instances of conduct of a witness, for the purpose of attacking or supporting the credibility of the witness, other than conviction of crime as provided in MRE 609, may not be proved by extrinsic evidence. They may, however, in the discretion of the military judge, if probative of truthfulness or untruthfulness, be inquired into on cross-examination of the witness (1) concerning character of the witness for truthfulness or untruthfulness, or (2) concerning the character for truthfulness or untruthfulness of another witness as to which character the witness being cross-examined has testified. The giving of testimony, whether by an accused or by another witness, does not operate as a waiver of the privilege against self-incrimination when examined with respect to matters which relate only to credibility.
opinion or reputation evidence. See United States v. Jenkins, 50 M.J. 577 (N. M.
untruthfulness. United States v. Toro, 37 M.J. 313 (C.M.A.
States v. Perner, 14 M.J. 181 (C.M.A. 1982).
belief of untrustworthiness, rehabilitation is permitted. United States v.
will satisfy the “or otherwise” component of Rule 608(a).
or statement is not an “or otherwise” attack under Rule 608(a).
rehabilitated as a means of “testing” the character witness.
with the answer.” United States v. Cerniglia, 31 M.J. 804 (AFCMR 1991).
subject to the general discretion of the court.
cross-examination of a character witness under Rule 405(a).
“Human Lie Detector” Testimony. In United States v. Kasper, 58 M.J.
to identify whether subjects were being truthful in interviews.
Opinion and reputation evidence of character.

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