Evidence Law

The Supreme Court has made clear that a district court may grant class action certification only after conducting a rigorous analysis to ensure that the requirements of Rule 23 of the Federal Rules of Civil Procedure have been met. Less clear, however, is what exactly a rigorous analysis entails. As precertification scrutiny has become more robust, reliance on expert testimony has become nearly indispensable for obtain­ing class certification....

In the 2017 case  Pena-Rodriguez v. Colorado, the Supreme Court held that the jury no-impeachment rule must yield to a crimi­nal defendant’s Sixth Amendment right to an impartial jury when a court is faced with clear evidence that racial animus played a signifi­cant role in the jury’s decision to convict. Despite the Supreme Court notably cabining its decision to instances of racial bias alone, commentators have questioned whether...

There is a war raging over the admissibility of the prior bad acts of criminal defendants in federal trials. While many circuits treat Federal Rule of Evidence 404(b) as a rule of “inclusion” and liberally admit such prior bad-acts evidence with predictably explosive effects on criminal ju­ries, a few circuits are developing rigorous standards de­signed to fore­close prosecutorial use of such bad-acts evidence. This Article chronicles the...