CJ 230 Evidence Forensics Review Exam Q & A 2026 (Complete And Verified Study material) (19pages) LEARNEXAMS

1. What principle underlies the 'Fruit of the Poisonous Tree' doctrine in evidence law? - A) Evidence must be gathered within the jurisdiction where the crime occurred. - B) Evidence obtained illegally is not admissible in court. - C) All evidence must be reviewed by a judge before being presented to a jury. - D) Evidence must be physically presented in court to be considered valid. Answer: B) Evidence obtained illegally is not admissible in court. Rationale: This doctrine holds that evidence gathered in violation of a defendant's constitutional rights is tainted and, therefore, inadmissible. 2. In the context of criminal law, what does the term 'mens rea' refer to? - A) The act of committing a crime - B) The mental state or intent to commit a crime - C) The evidence that proves a crime was committed - D) The legal defense against criminal charges Answer: B) The mental state or intent to commit a crime. Rationale: 'Mens rea' is a legal term that refers to the criminal intent or guilty mind necessary to establish liability for a crime. 3. Which rule pertains to the admissibility of digital evidence in court? - A) The Best Evidence Rule - B) The Exclusionary Rule - C) The Hearsay Rule - D) The Chain of Custody Rule Answer: A) The Best Evidence Rule. Rationale: The Best Evidence Rule requires that, when available, the original piece of evidence or its reliable duplicate be presented in court, especially pertinent to digital evidence. 4. What is the primary purpose of the 'Miranda Rights' in the United States? - A) To inform suspects of their right to remain silent and to an attorney - B) To allow suspects the right to a speedy trial - C) To prevent suspects from fleeing the jurisdiction