Evidence Flashcards
Expert Opinion Rules
Under Federal Rule of Evidence (FRE) 702, an expert witness may state an opinion or conclusion, provided that: (I) the subject matter is one where scientific, technical, or other specialized knowledge would help the trier of fact understand the evidence or determine a fact in issue; (ii) the opinion is based on sufficient facts or data; (iii) the opinion is the product of reliable principles and methods; and (iv) the expert has reliably applied the principles and methods to the facts of the case. The expert must possess reasonable certainty or probability regarding his opinion. An opinion that is mere guess or speculation is inadmissible.
Rebutting a Defendant’s Character Witness
If the defendant puts her character at issue by having a character witness testify as to his opinion of the defendant or the defendant’s reputation, the prosecution may rebut in the following manner: (i) by calling its own character witness to testify to the defendant’s bad reputation or their opinion of the defendant’s character for the particular trait involved; and (ii) on cross-examination, by inquiring whether the reputation witness knows or has heard of particular instances of the defendant’s misconduct pertinent to the trait in question. Fed. R. Evid. 405(a).
Best Evidence Rule
The best evidence rule is more accurately called the “original document rule.” The rule is as follows: In proving the terms of a writing (recording, photograph, or X-ray), where the terms are material, the original writing must be produced.
Secondary evidence of the writing, such as oral testimony regarding the writing’s contents, is permitted only after it has been shown that the original is unavailable for some reason other than serious misconduct of the proponent. Fed. R. Evid. 1002.
Kelly-Frye Standard
The Kelly-Frye states that reliability of scientific opinion is determined by one factor, which is that the opinion must be based on principles reasonably accepted by experts in the field. It is inapplicable to non-scientific opinion and medical opinion since those are based on facts and circumstances of the case.
Three-Step Approach to Admissibility of Impeachment Evidence
1) Is the source of impeachment extrinsic evidence or testimony;
2) If it is extrinsic, is it admissible given an impeachment technique; and
3) Are there any other foundation requirements?
Prior Consistent Statements
Prior Consistent Statements are not considered hearsay. They are considered admissible for all purposes if made before an alleged motive to fabricate arose otherwise, it will be considered inadmissible.
1) Note: Usually, Prior Inconsistent Statements are considered hearsay and are only allowed for impeachment purposes. However, if the statement was made under oath at a prior proceeding, it is admissible non-hearsay and may be admitted as substantial evidence of the facts stated.
Prior Inconsistent Statements
A party may show, on Cross or with extrinsic evidence, that the witness has, on another occasion, made a statement inconsistent with his or her present testimony. However, a proper foundation must be laid and the statement must be relevant to an issue in the case.
Logical Relevance
Logically relevant evidence is evidence that makes the existence of any material fact of an action more probable than it would be without the evidence.
“Here the evidence is logically relevant because….. Thus it is relevant/irrelevant.
Tip: Ask what the evidence is trying to prove, if it is related to a material issue in the case, and is it probative of that proposition?
Legal Relevance
Even if evidence is relevant the court may do a balancing act whereby a judge may use their discretion to exclude the evidence if its probative value is substantially outweighed by unfair prejudice, confusion or waste of time.
“Here the evidence is more/less probative than prejudicial because….”, “Thus the evidence should be excluded/admitted.”
Reliability
Evidence must also be reliable in order for admission.
Personal Knowledge
One has perceived the facts with one or more or her senses and a reasonable juror believes the witness perceived the fact.
Competency of a Witness (Testimonial Evidence)
There are four requirements for a witness to testify. 1) Personal Knowledge, 2) Present Recollection, 3) Communication, 4) Sincerity (Must understand legal duty to tell truth - CA)
Hearsay
An out of court statement, offered in court, to prove the truth of the matter stated. It can be verbal or written of a person or any conduct that is intended to communicate.
“Here, the statement is/is not hearsay because _________.
The next issue is whether there is an exception to the hearsay rule. “
Not Hearsay
Things that are not hearsay include: Independent Legal Significance, Offered to show the effect on the listener, to show speaker or writers knowledge, or show a circumstantial state of mind.
Unavailability
A declarant is deemed unavailable if they are 1) exempt due to privilege, 2) dead or sick, 3) refuses to testify, 4) cannot be procured by process or reasonable means, 5) memory fails on the subject (total loss in CA), 6) or in California – out of fear.
Present State of Mind
A statement of a declarant’s then-existing state of mind, emotion, sensation or physical condition is admissible.
Present Sense Impression
If the statement is explaining a condition or event made while the declarant was perceiving the event or immediately thereafter.
Excited Utterance
An out of court statement relating to a startling event made while under the stress of the excitement of the event. It must be before the declarant has time to reflect on it.
Prop 8 Summary
In California, the Truth and Evidence Amendment to the California Constitution, Proposition 8, makes all relevant evidence in a criminal case admissible, even if it’s objectionable under the CEC. However, courts still have the power to exclude evidence if unfair prejudice substantially outweighs its probative value.
Best evidence rule
In proving the terms of a writing (recording, photo, X-ray, etc) where the terms are material the original writing must be produced. Secondary evidence of the writing such as oral testimony regarding the writings contents, is permitted only after it has been shown than the original is unavailable for some reason other than the serious misconduct of the proponent.
Impeachment
The casting of an adverse reflection on the truthfulness of the witness
Impeachment with a Prior Felony Conviction
Under the FRE, all felonies involving a false statement are admissible and there is no balancing of unfair prejudice against probative value except for old convictions over ten years.
Felonies not involving false statements may be admissible with the balancing test.
In California all moral turpitude felonies are admissible with a balancing test. All other felonies are inadmissible.
Impeachment for Misdemeanor Crimes
Evidence of Prior Misdemeanor Convictions:
Under the FRE, all misdemeanors involving false statements are admissible and there is no balancing test except for old convictions. All other misdemeanors are inadmissible to impeach. In California, all misdemeanors are inadmissible unless they fall under Prop 8.
Moral Turpitude Crimes
Crimes of lying, violence, theft, extreme recklessness and sexual misconduct but not crimes for merely negligent or unintentional acts.
Authentication
Before a writing is received in evidence, the writing must be authenticated by proof showing that the writing is what the proponent claims it is.
A voice may be authenticated by anyone who has heard the voice at any time.
Declarant’s state of mind
Statements introduced to show the state of mind of the declarant are not offered for the “truth of the matter asserted” and thus are not hearsay. Thus a statement offered to show the declarant’s knowledge is not hearsay.
Vicarious Admission
Admissions are excluded from the hearsay rule and will be admitted. A party admission is any statement made by a party and it may be offered against him. The statement need not be against declarant’s interest.
Impeachment - Bad Acts of truthfulness
Truthfulness:
Specific Bad Acts that are probative of truthfulness may be raised on certain circumstances on cross-examination and subject to the legal balancing test. 1) The question must be made in good faith, 2) extrinsic evidence is not allowed to prove the bad act so essentially the questioner is stuck with the answer received from the witness. CA: Not available in civil cases.
Rehabilitation:
The rehabilitating evidence must support the witness’s credibility in the same respect as the attack.
Business Record
Admissible where a sponsoring witness establishes the record was kept in the course of regularly conducted business activity. 1) Business activity, 2) regular practice, 3) personal knowledge (Must have a business duty to report), 4) timeliness.
Spousal Testimonial Privilege:
Permits witnesses to refuse to testify against his or her spouse as regarding any matter. Under the FRE it applies only to criminal cases and in CA it applies to all cases and the spouse of the party is even privileged not to be called to witness stand.
Can only be claimed during marriage.
Only witness spouse may testify
Does not apply to actions between spouses
Invoking privilege makes them unavailable
Spousal Confidential Communication Privilege
Under both the FRE and CEC any communication between spouses is privileged and protects any confidential spousal communications during the marriage.
Privilege survives the marriage (just comms, not acts).
Both spouses may assert and can prevent the other from testifying except for crimes against the other spouse or child.
Evoking makes spouse unavailable for hearsay purposes.
On Direct
Leading questions should not be used on the direct examination of a witness except to develop the witness testimony or if the witness is an expert.
Subsequent Remedial Measures
Evidence of repairs made following an injury is inadmissible to prove negligence, culpable conduct, a defect in a product or its design or defective warning or instruction.
Exception: Show ownership/control, rebut a claim the precaution was not feasible or to prove destruction of evidence.
CA ONLY: Is admissible to prove defective design in a product’s strict liability case.