The U.S. Supreme Court has ruled on June 20 that expert witnesses can testify about the general mental state of individuals in similar situations to criminal defendants. This decision clarifies a previous rule that prohibited expert witnesses from giving opinions on a defendant’s state of mind, or mens rea. The ruling, which came on Thursday in the case of Smith v. Arizona, was delivered by Justice Kagan. This decision grants the government more leeway in using expert testimony for its truth in criminal trials.
Supreme Court Broadens Use Of Expert Testimony Against Accused Criminals https://t.co/MBwBiFfsUv
BREAKING: The U.S. Supreme Court on Friday ruled Arizona prosecutors violated a criminal defendant’s Sixth Amendment right to confront witnesses by presenting a substitute expert witness at trial. https://t.co/tsl499KaD6 https://t.co/06KI1pskvV
Fourth (but not last) ruling from #SCOTUS is in Smith v. Arizona. It's a majority opinion by Justice Kagan in a messy case with lots of separate opinions about when expert testimony is admissible for its truth: https://t.co/7fk2VGdcgM More coming.