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Evidence Commons

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Full-Text Articles in Evidence

Why Do We Admit Criminal Confessions Into Evidence?, David Crump Sep 2019

Why Do We Admit Criminal Confessions Into Evidence?, David Crump

Seattle University Law Review

There is an enormous literature about the admissibility of criminal confessions. But almost all of it deals with issues related to self-incrimination or, to a lesser extent, with hearsay or accuracy concerns. As a result, the question whether we ever admit criminal confessions into evidence has not been the subject of much analysis. This gap is odd, since confessions are implicitly disfavored by a proportion of the literature and they often collide with exclusionary doctrines. Furthermore, the self-incrimination issue sometimes is resolved by balancing, and it would help if we knew what we were balancing. Therefore, one might ask: Why …


Brain Scans As Evidence: Truths, Proofs, Lies, And Lessons, Owen D. Jones, Francis X. Shen Apr 2019

Brain Scans As Evidence: Truths, Proofs, Lies, And Lessons, Owen D. Jones, Francis X. Shen

Owen Jones

This contribution to the Brain Sciences in the Courtroom Symposium identifies and discusses issues important to admissibility determinations when courts confront brain-scan evidence. Through the vehicle of the landmark 2010 federal criminal trial U.S. v. Semrau (which considered, for the first time, the admissibility of brain scans for lie detection purposes) this article highlights critical evidentiary issues involving: 1) experimental design; 2) ecological and external validity; 3) subject compliance with researcher instructions; 4) false positives; and 5) drawing inferences about individuals from group data. The article’s lessons are broadly applicable to the new wave of neurolaw cases now being seen …


Between Brady Discretion And Brady Misconduct, Bennett L. Gershman Apr 2019

Between Brady Discretion And Brady Misconduct, Bennett L. Gershman

Dickinson Law Review (2017-Present)

The Supreme Court’s decision in Brady v. Maryland presented prosecutors with new professional challenges. In Brady, the Supreme Court held that the prosecution must provide the defense with any evidence in its possession that could be exculpatory. If the prosecution fails to timely turn over evidence that materially undermines the defendant’s guilt, a reviewing court must grant the defendant a new trial. While determining whether evidence materially undermines a defendant’s guilt may seem like a simple assessment, the real-life application of such a determination can be complicated. The prosecution’s disclosure determination can be complicated under the Brady paradigm because …


Where The Constitution Falls Short: Confession Admissibility And Police Regulation, Courtney E. Lewis Jan 2019

Where The Constitution Falls Short: Confession Admissibility And Police Regulation, Courtney E. Lewis

Dickinson Law Review (2017-Present)

A confession presented at trial is one of the most damning pieces of evidence against a criminal defendant, which means that the rules governing its admissibility are critical. At the outset of confession admissibility in the United States, the judiciary focused on a confession’s truthfulness. Culminating in the landmark case Miranda v. Arizona, judicial concern with the reliability of confessions shifted away from whether a confession was true and towards curtailing unconstitutional police misconduct. Post-hoc constitutionality review, however, is arguably inappropriate. Such review is inappropriate largely because the reviewing court must find that the confession was voluntary only by …


Making Rule 23 Ideal: Using A Multifactor Test To Evaluate The Admissibility Of Evidence At Class Certification, Cianan M. Lesley Jan 2019

Making Rule 23 Ideal: Using A Multifactor Test To Evaluate The Admissibility Of Evidence At Class Certification, Cianan M. Lesley

Michigan Law Review

Circuit courts are split on whether and to what extent the Daubert standard should apply at class certification. Potential plaintiffs believe that application of Daubert would make it nearly impossible to obtain class certification. For potential defendants, the application of the standard is an important way to ensure that the certification process is fair. This Note examines the incentives underlying the push to apply the Daubert standard at class certification and the benefits and drawbacks associated with that proposal. It proposes a solution that balances the concerns of both plaintiffs and defendants by focusing on three factors: the obstacles to …