Witnesses & Impeachment (Module 6-7) Flashcards
Competency of Witness
Generally presumed competent until otherwise established; must:
1) have personal knowledge (can prove personal knowledge w/ own testimony)
2) oath/affirmation
Incompetent Witnesses
1) children (case-by-case determination)
2) insanity (can testify if they have the capacity)
3) judge/juror in this trial can’t testify
Federal Rule 610 provides that a witness’s religious beliefs or opinions are not admissible to show that the witness’s credibility is thereby impaired or enhanced
Jurors Testifying about Past Trial
Cannot testify about what occurred during the deliberations and what affected their vote
Can testify about:
- extraneous prejudicial info
- outside influence
- mistake in the verdict form
- clear statement by other juror that they had racial animus
Dead Man Acts
Not in FRE, some states have and q will specify (e.g., Erie)
In a civil case, an interested person is incompetent to testify against the decedent’s estate/successors about a personal transaction bt them and the decedent
interested = gain/lose by judgement, judgement could be used against them in subsequent action
Leading Questions
Generally only allowed on cross-exam, but will allow on direct if:
1) elicit preliminary or introductory matter
2) witness has loss of memory, immaturity, or physical/mental weakness
3) hostile witness, adverse party or witness associated with adverse party
Scope of Cross-Exam
Limited to the scope of the direct examination (including all rxble inferences drawn from it)
Can test credibility of the witness (i.e., impeach)
Improper Questoins/Answers
Questions can’t be misleading, argumentative, conclusionary, harrassing/embarrasing. etc.
Answers that lack foundation (insuff personal knowledge) or don’t properly respond to the question can be stricken
Refreshing Witness Recollection
W’s present recollection of facts they have personal knowledge of fails them during testimony, can quickly refresh; any writing can be used
Don’t require authentication because is not submitted into evidence
When W refreshed while on the stand, adverse party can:
1) look at the writing
2) cross-exam witness about the writing
3) introduce the writing into evidence
Note: if witness was refreshed before taking the stand, these options can only happen if court decides justice requires
Reading Recorded Recollection into Evidence
Can be READ into evidence if a proper foundation is laid:
1) W has insufficient recollection
2) W had personal knowledge
3) Record was made or adopted by W
4) Record was made when the matter was fresh in W’s mind
5) Witness vouches for its accuracy
Adverse party ONLY can have the actual recorded document made into an EXHIBIT
Lay-Witness Opinion Testimony
Is only admissible if:
1) based on the witness’s perception
2) helpful to understand W’s testimony or fact in issue, AND
3) not based on specialized knowledge
Examples: appearance of a person, state of emotion, voice/handwriting ID, speed of moving object, rational/irrational nature of another’s conduct, intoxication
Opinion Testimony of Expert Witness
Must be more likely than not that:
1) specialized knowledge would assist trier of fact
2) based on sufficient facts/data
3) reliable principles/methods
4) qualified by specialized knowledge
Can give on an opinion on the ultimate issue in the case but in a criminal case where D’s mental state is an element of the crime/defense cannot
Proper Factual Basis for an Expert Witness
Can be based on any of the following:
1) Expert’s personal observation
2) Facts made known to the expert during the trial
3) Facts not known personally but are the type to be rxbly relied upon by other experts in the field (those facts do not have to be disclosed unless reverse 403 balancing says otherwise)
Reliability of Expert Witness’s Principles/Methodologies
Judge is the gatekeeper to decide; will use the following factors:
TRAP
T - testing of principle/method
R - rate of error
A - acceptance by experts in fiield
P - peer review
Use of Learned Treatises During Examination
Can be used to impeach experts AND as substantive evidence (i.e., to prove what the treatise says is true)
Limitations:
1) established as reliable by expert testimony or judicial notice
2) must be used in the context of exam/cross-exam of expert witness
3) cannot be an exhibit
Bolstering Witness
Can’t bolster/accredit the witness until after they have been impeached (W can’t bolster their own testimony either)
Exceptions:
1) evidence that W made a timely complaint (ex. in a sexual assault case)
2) W’s prior statement of identification (can also serve as substantive evidence)