Witness Impeachment & Character for Truthfulness Flashcards
Witness Impeachment
Every witness who takes the stand is exposed to possible cross-examination by opposing counsel, but either party may impeach a witness.
(1) Character-Based Impeachment (Impeachment for Trustworthiness); or
(2) Non-Character-Based Impeachment (Impeachment for Accuracy)
The evidence used to impeach a witness must pertain to truthfulness or untruthfulness, not peacefulness, temperance, or anything else.
Character-Based Impeachment
A Witness’ character for trustworthiness may be impeached by evidence of:
(1) Character for Truthfulness/Untruthfulness;
(2) Specific Instances of Conduct; or
(3) Past Criminal Conviction.
Non-Character-Based Impeachment
A witness’ accuracy may be impeached by:
(1) Allegations of Mistake;
(2) Contradiction; or
(3) Evidence of Bias.
Witness Impeachment
Allegations of Mistake
A witness may be impeached by casting doubt on their powers of:
(1) Perception;
(2) Memory; or
(3) Narrative Accuracy.
These are not considered character evidence because they are capacities, not traits.
Witness Impeachment
Contradiction
A witness may be impeached by exposing one lie at a time through:
(1) Conflicting Evidence or Circumstances; or
(2) Past Inconsistent Statements (Wishy Washy Witness)
Witness Impeachment
Evidence of Bias
Evident of bias is generally permissible.
Examples:
- Corruption
- Family ties
- Personal friendships
- Memberships in clubs
- Employment relationships
- Etc.
Witness Impeachment
Proving Character for Truthfulness/Untruthfulness
A witness’ credibility may be attacked or supported by testimony :
(1) About witness’ reputation for having a character for truthfulness/untruthfulness; or
(2) in the form of an opinion about that character
NOTE: Evidence supporting a witness’ credibility is only admissible after their credibility has been attacked.
Witness Impeachment
Opinion Testimony
Witness must be qualified based on personal knowledge
Witness Impeachment
Reputation Testimony
Witness must be qualified based on knowledge of:
(1) The witness;
(2) The witness’ community; and
(3) The circles in which the witness has moved.
NOTE: Consider the size of the “circle” and the proximity (usually time) of the knowledge
Proving Character using Specific Instances of Conduct
Witness may be cross-examined about Specific Instances of Conduct that are probative of their character for truthfulness.
May not use any extrinsic evidence.
Proving Character using Past Criminal Conviction
(1) Witness has a Past Conviction;
(2) Punishable by death or 1+ year in prison;
(3) Conviction is
(a) A readily determinable “lying crime” or
(b) Its PV outweighs risk of UP (using Brewer Factors)
(4) Conviction or Release (whichever is later) was less than 10 years ago,
(a) Its PV substantially outweighs risk of UP (modified 403), and
(b) The proponent gave reasonable notice.
NOTE: Consider whether the Conviction was juvenile or has been pardoned, annulled, or received certificate of rehabilitation
“Lying Crime”
If it is not readily determinable that the conviction is for a “Lying” type of crime, the judge must weigh the probative value against the risk of unfair prejudice.
(1) if the witness is not the defendant → 403 Balancing Test; but
(2) if the witness is the defendant → Modified 403 Balancing Test (Outweighs)
Readily Determinable “Lying” Crimes
“Lying Crimes” may be readily determined by:
(1) Required statutory elements;
(2) Trial court judgement;
(3) Indictment;
(4) Statement of admitted facts;
(5) Jury instructions;
(6) Etc.
“Lying” Crimes Not Readily Determinable
If it is not readily determinable that the conviction is for a “Lying” type of crime, the judge must weigh the probative value against the risk of unfair prejudice.
(1) if the witness is not the defendant → 403 Balancing Test (substantially outweighs);
but
(2) if the witness is the defendant → Modified 403 Balancing Test (outweighs) using Brewer Factors.
Brewer Factors
Whether evidence of convictions are more probative than prejudicial is decided based on considering:
(1) Nature of crime;
(2) Time of conviction and subsequent history;
(3) Similarity of past and present crime (more similar = more prejudice);
(4) Importance of testimony; and
(5) Centrality of credibility.