Rios v. United States

(1) Whether law-enforcement officers must secure a warrant to obtain real-time cellular-phone location data; (2) whether courts must instruct juries on the required unanimity regarding the specific categories of acts in Racketeer Influenced and Corrupt Organizations Act conspiracy cases, and likewise whether the court's conclusions in Richardson v. United States apply in RICO cases; and (3) whether courts should deliver uniform jury instructions on reasonable doubt and preserve the standard of proof necessary to sustain a criminal conviction.