Whether excluding the foster parent’s opinion that N.T.B. was untruthful violated Turning Bear’s constitutional right to present a defense.
Holding
Yes. The testimony was admissible credibility evidence, and its exclusion deprived Turning Bear of material and favorable defense evidence without a valid evidentiary justification.
Reasoning
The Fifth and Sixth Amendments protect a criminal defendant’s right to call witnesses in his defense. That right is implicated when a court arbitrarily excludes evidence that is material and favorable to the defense and otherwise admissible under the Rules of Evidence.
Federal Rule of Evidence 608(a) permits opinion evidence attacking a witness’s character for untruthfulness, and Rule 701 requires that lay opinion be rationally based on the witness’s perceptions and helpful to deciding a fact in issue. Odens had daily contact with N.T.B. for four to six months while he lived in her home. That relationship gave her an adequate basis to form an opinion about his character for truthfulness; her proposed testimony was more than a bare or conclusory assertion.
The district court did not exclude the testimony because Odens lacked sufficient familiarity with N.T.B. Instead, it called her opinion a personal view and a “slippery slope,” while accepting the government’s incorrect characterization of the evidence as improper vouching. Those reasons did not support exclusion under Rules 608 or 701.
Rule 403 can sometimes exclude otherwise admissible character evidence, but only when its probative value is substantially outweighed by a specified danger, such as unfair prejudice, confusion, or needless cumulation. N.T.B.’s credibility was central to the prosecution, and Odens’s testimony was not cumulative. The court identified no countervailing Rule 403 concern sufficient to outweigh its substantial probative value.】【”】【},{