Evidence: Witnesses Flashcards
Competency of Witness, In general
personal knowledge
and
Oath or affirmation
Dead man’s statute– in general,
(1) witness is ordinarily incompetent merely because she has an interest — a direct legal stake– in outcome of the litigation.
(2) BUT some states have a “Dead Man’s Act.” The typical Act provides that in a civil action, an interested witness is incompetent to testify in support of her own interest against the estate of a decedent concerning communications or transaction between the interested witness and the decedent.
Shania sued Elvis for breach of an oral K. Elvis denied that any K was made. Elvis died before trial. (a) May Shania testify to what Elvis said and did in negotiating the K? (b) May Shania’s friend Faith, who witnessed the making the K, testify to what Elvis said and did?
Yes!– both are competent.
On Multistate–witnesses ordinarily are not incompetent on this ground BUT if question explicitly states the particular jurisdiction in which case arises has dead man’s state–then result changes
(a) Shania is interested witness–so incompetent
(b) Faith has interest– competent (bias doesn’t disqualify her)
Leading Questions
(a) Generally NOT ALLOWED on direct examination
(b) Generally ALLOWED on cross-examination
(C) But allowed on direct exam as follows:
(1) preliminary introductory matter
(2) youthful or forgetful witness
(3) hostile witness
(4) adverse party or someone under control of AP
Writings in Aid of Oral Testimony
1. Refreshing Recollection
GR: witness may not read from prepared memorandum; must testify on basis of current recollection
BUT if witness’s memory fails him, he may be shown a memorandum (or any other tangible item) to jog his memory.
Safeguards against abuse: Adversary has the right to
- inspect the memory-refresher
- to use it on cross-examination
- to introduce into evidence
Writings in Aid of Oral Testimony
2. Past Recollection Recorded (Hearsay Exception)
Foundation for reading the contents of writing into evidence:
- showing writing to witness fails to jog memory
- witness had personal knowledge at former time
- writing was either made by witness, or adopted by witness
- making or adoption occurred while the event was fresh in witness’s memory.
- Witness can vouch for accuracy of writing when made or adopted.
* basically can read to jury but can only be introduced into evidence by opponent.
Opinion Testimony
1. Lay Witness
Lay opinion admissible if (1) rationally based on witness’s perception (personal knowledge) and (2) helpful to jury
Ex. drunk/sober, speed of vehicle, sane/insane, emotions of another person, odors, handwriting, character (when permitted)
Opinion Testimony
2. Expert Witness
(a) Qualifications: education and/or experience
(b) Proper subject matter: scientific, technical, or other specialized knowledge that will be helpful to jury in deciding a fact. eg. an opinion is not helpful if the proposition is obvious.
Basis of Opinion
Expert must have opinion based on “reasonable degree of probability or reasonable certainty”
The expert may draw upon three permissible data sources:
1. Personal knowledge (e.g. treating physician)
2. Other evidence admitted at trial (testimony by other witnesses, exhibit (medical reports, x-rays)) – made known to expert by hypothetical question
3. Facts outside the records (hearsay) if of type reasonably relied upon by experts in forming opinions.
Relevance and Reliability
To be admissible, expert opinion must be relevant to the issue at hand and Sufficiently Reliable.
Four principal factors to determine reliability of principles and methodology used by expert (all types) to reach opinion – TRAP
Testing of principles and method
Rate of Error
Acceptance by others
Peer review or publication
Learning Treatise in Aid of Expert Testimony (Hearsay Exception)
(1) On direct examination of party’s own expert: Relevant portions of treatise, periodical, or pamphlet may be read into evidence as substantive evidence (to prove truth of matter asserted) if established as reliable authority.
(2) On cross-examination of opponent’s expert: Read into evidence to impeach and contradict opponent’s expert. Comes in as substantive evidence
(3) BUT learned treatise may not be introduced as exhibit.
Ultimate Issues
Opinion testimony is objectionable just because it embraces an “ultimate issue” in the case. BUT all other requirements for opinion testimony must be satisfied, including the requirement that the opinion is helpful.
Criminal Cases:
Ultimate issue is still proper objection if expert seeks to give direct opinion that defendant did not or did not have relevant mental state. The expert can nay testify in general terms about the effects of a defendant’s mental condition without linking it to the particular case, such a: D has schizophrenia. A person with such disease cannot distinguish fact from fantasy.
Cross-Examination
Party has a RIGHT to cross-examine any opposing witness who testifies at the trial. Significant impairment of this right will result, at minimum, in striking of witness’s testimony.
Proper subject matter: Matters within scope of direct examination, and and matters that test the witness’s credibility