logical relevance
To be admissible, evidence must first be relevant. A piece of evidence is logically relevant
if it has any tendency to make a fact of consequence in the case more or less likely to be
true than it would be without the evidence
Legal Relevance
To be admissible, evidence must also be legally relevant. Evidence may be excluded if its
probative value is substantially outweighed by the risk of undue prejudice to the jury. Evidence is only prejudicial if it is likely to lead the jury to draw improper
conclusions about he defendant’s guilt or innocence.
Witness competence
For the witness testimony to be admissible, witness be competent to testify regarding the evidence.
A witness is competent if he has personal knowledge about the facts that he is testifying
to.
Burden of Persuasion
Shifting Burdens
Presumptions
Inferences
Relevance
Conditional Relevance
Materiality
Probativeness
Direct Evidence
Circumstantial evidence
Authentication
To be admissible, documentary evidence must be authenticated as being what it purports
to be.
Methods of Authentication
Best Evidence Rule
Under the best evidence rule, if a witness’s sole knowledge of facts comes from a written
document, then the fact must be proved from the written document unless the absence of
the document is explained and excused
Offers of Proof
Hearsay
an out of court statement offerd to prove the truth of the matter asserted.
Non Hearsay
Business Records Exception
the records of a business may be admitted
into evidence if they were regularly prepared in the ordinary course of business by business
employees with a duty to the business to maintain accurate records. Business is defined
to not only include for-profit businesses but also nonprofits and government agencies
Business Kept in the Regular
A writing made in the ordinary course of business,
At or near the time of the act, condition or event,
A custodian or other qualified witness testifies to the writing’s identity and mode of preparation (foundation), and
The sources of information and method and time of preparation indicate trustworthiness
Government Records Exception
the records must have been
maintained by a government agency and must be: (1) a record of the activities of that
agency, (2) a report prepared in accordance with a duty imposed by law, or (3) a report of
an investigation duly authorized by law. Government records of the police investigation
regarding a crime are not admissible against the defendant in a criminal trial, but other
government records are admissible.
Multiple Hearsay
Unavailability of the Declarant