Tangible Evidence Flashcards
What is tangible evidence?
evidence that’s not presented in the form of testimony by a witness
- Documentary Evidence
- Physical Objects
Authentication as a condition precedent to admissibility requires evidence to be what?
To authenticate an item, proponent must produce sufficient evidence to support a finding that the matter in question is what the proponent claims it to be
When is demonstrative Evidence Admissible?
Court may allow demonstrations & experiments to be performed in the courtroom
- Court has discretion to exclude evidence of pers. injury if the demo. of such severe injuries would result in unfair prejudice
- Court may exclude demo that can’t he effectively cross-examined
- Science exp. are permitted but may be excluded if they will result in undue waste of time or confusion of the issues
Authentication of Physical Objects
Authenticated by testimony of:
- personal knowledge or the object
- its distinctive characteristic or
- Chain of Custody (when applicable)
What is required for a chain of custody with physical objects?
Authentication by chain of custody must be used w/ respect to physical objects that could easily be tampered with or confused with a similar object. The witness testifying must:
- Account for item’s whereabouts from the time it was obtained until its introduction at trial
- The party entering the item must account for any change in the evidence
Introduction of Reproductions
Authenticated by testimony of a witness w/ pers. knwoledge that the object accurately depicts what its proponent claims it does
X-ray Images & Electrocardiograms
Physical representations of things that can’t otherwise be seen
- Can’t be authenticated by the testimony of a witness that they are accurate reproductions of the facts
- To authenticate - must be shown that:
- an accurate process was used
- The machine used was working properly, and
- the operator of the machine was qualified to operate it
- Chain of custody must also be est.
Documentary Evidence
Usually authenticated by stipulation, eyewitness testimony, or handwriting verification
- Ancient Documents
- Public Records
- Reply Letter
- Handwriting Verification
- Self-Authenticating
Ancient Documents
Authentic if it is:
- At least 20 years old
- In a condition unlikely to create suspicion as to its authenticity, and
- Found in a place where it would likely be if it were authentic
Public record
Authenticated by evidence that the doc. was:
- recorded or filed in a public office as authorized by law or
- that the document is from the office where items of that kind are kept
Reply Letter Doctrine
Written in response to a communication
- Authenticated by evidence that it was written in response to a communication
- so long as it is unlikely, based on the contents, that it was written by someone other than the recipient of the 1st communication
Handwritting Verification
2 ways handwriting verification may be used to authenticate a writing
- Comparison by Expert or Trier of Fact OR
- Compare w/ another writing that has been proven to be genuine
- May also be used to auth. fingerprints, cloth fibers, hair
- Non-Expert with personal knowledge of the claimed author’s handwriting
- Can testify as to whether the doc. is in that person’s handwriting
- Lay witness may not have become familiar with the handwriting for the purp. of litigation
Self-Authenticating Documents
The following are self-authenticating, they don’t need extrinsic evidenceof authenticity in order to be admitted
- Pub. doc. bearing gov’t seal & signature of auth. gov’t official or not sealed but signed by auth. gov’t official & certified by another auth. gov’t official
- Certified copies of pub. rec.
- Official publications issued by pub. authority
- Newspapers and periodicals
- Trade Inspections
- Notarized documents
- Commercial paper
- Any doc., signature, or other item declared by fed. statute to be authentic, and
- Records of a regularly conducted activity certified by a custodian of the records
Oral Statements
May need to be authenticated as to the identity of the speaker in cases in which that identity is important
Voice Identification
Can be identified by any person who has heard the voice at any time (including one made familiar solely for purp. of litigation)