Evidence Flashcards
Experts
Four factors for reliability:
Testability of theory/technique
Subject to peer review and publication
Known/potential rate of error
Whether methodology is generally accepted in the scientific community
Credibility
Cannot be established until it is attacked.
Four methods to attack credibility of witnesses by impeachment:
- Prior convictions
- Bias, interest, corruption → only against a party, not in general.
- Prior contradictory statement
- Bad rep. for truth and veracity → only gen. reputation in community as to truth.
Credibility - Prior Convictions
Prior convictions (“bad acts”) → any crime, any time.
Witness subjects self to Q’s about all convictions on cross-examination.
Exclusion of Witnesses
Court may sequester witnesses, but cannot sequester:
a party/rep
essential witness (i.e., expert)
victim/family.
Relevancy - Defined
Relevancy means having a tendency to make the existence of a fact more or less probable. (“move your mind off dead center”)
- Probative balancing test → probative worth v. prejudicial effect.
Character Evidence
Usually inadmissible to prove D acted in conformity therewith, but there are two exceptions (only general reputation may be offered)
- Criminal D’s character → state can rebut only if D puts on character evidence “opens the door”. State may cross-examine witnesses to see if they know of specific bad acts.
- Victim’s character → only if D shows hostile demonstration or overt act by victim @ time of offense.
Specific bad acts not admissible for character evidence, but admissible to show KIPPOMIA.
- knowledge, intent, preparation, plan, opportunity, motive, identity, absence of mistake or accident
Hearsay - Defined
An out-of-court statement offered to prove the truth of the matter asserted.
Privileges
Attorney-Client → may not disclose confidential communications between lawyer and client made in furtherance of obtaining legal advice.
Spousal →
- Spouses not allowed to testify about confidential communication made during marriage to one another. (applies even after marriage)
- Neither husband nor wife can be compelled to be a witness against the other (ends at divorce)
Doctor-Patient
Authentication
Documents should be what they purport to be – we make sure of this through authentication.
- Authentication is satisfied by evidence sufficient to support a finding that the matter in question is what its proponent claims it is.