witnesses and impeachment Flashcards
What is required for a witness to be considered competent?
- Take an oath to testify truthfully;
- Testify based on personal knowledge );
- Must not be incapacitated; and
- Must give testimony as to facts, not opinions
*under FRE, witnesses are presumed competent
scope of testimony
-a lay witness MUST have personal knowledge
-an expert witness does not need to have personal knowledge
judge’s competency as a witness
The presiding judge may NOT testify as a witness at the trial. the objection is automatic and need not be made.
competency of a juror as witness
A juror may NOT testify as a witness before the jury of which they are a member.
what a juror may testify to
-extraneous prejudicial information improperly brought to the juror’s attention;
(A juror may be questioned regarding whether or not someone brought in a newspaper article about the case, or about a communication by a juror with court personnel regarding the case.)
-that a juror made an unauthorized visit to the scene, or conducted out-of-court experiments regarding evidence presented at trial; or
-that a juror accepted a bribe, or was threatened with harm.
impeaching the verdict
A juror may NOT testify as to the manner in which the jury reached its decision; such testimony, generally, is inadmissible.
Impeachment
evidence which attacks a witness’s credibility
*always relevant, even if beyond the scope of the first examination. always admissible.
who can attack the credibility of a witness
any party, including the party calling the witness
rehabilitation
after a witness is impeached, evidence which detracts from the impeachment is admissible.
*evidence to enhance a witness’s credibility is NOT admissible under AFTER the witness has been impeached.
methods of rehabilitation
- explain or deny
- prior consistent statement
- character evidence for truthfulness by reputation or opinion
collateral matter rule
a collateral matter is evidence solely affecting the credibility of a witness. it is otherwise irrelevant to the cause of action or defense.
extrinsic evidence on a collateral matter
Impeaching with extrinsic evidence on a collateral matter is limited (not an absolute bar)
-Extrinsic evidence: any impeachment evidence other than the questions and answers of the witness being impeached)
-Collateral matter: anything that is not relevant to the cause of action.
cross-examination while impeaching on collateral matter
the cross-examiner is bound by the witness’s answer
methods of impeachment
- Interest, motive, or bias
- (sensory defects)Incapacity to observe, recall, or relate
- (prior) Inconsistent statement (PINS)
- Character evidence for truthfulness by reputation or opinion
- Character evidence for truthfulness by prior bad acts
- (prior) Conviction of crime
- Contradiction
Mnemonic “3 I’s 4 C-ing” (“Three Eyes For Seeing”)
Impeachment by interest, motive, or bias
bias or prejudice is always material and relevant. extrinsic evidence is admissible.
impeachment by sensory defects
the inability to observe, communicate, or remember.
-extrinsic evidence is admissible. always relevant