Four consolidated cases before the Colorado Supreme Court raised the issue of whether DUI is a lesser included offense of either vehicular assault-DUI or vehicular homicide-DUI. In ruling on them in a single opinion, the state high court also addressed: (1) whether a double jeopardy claim can be raised for the first time on direct appeal; and (2) which tests courts should apply in evaluating whether one offense is a lesser included offense in another offense.
Regarding (1), the supreme court concluded that unpreserved double jeopardy claims could be raised for the first time on appeal and that appellate courts should ordinarily review these claims for plain error. In so holding, the court rejected the government’s argument that defendants waive their double jeopardy claims unless they raise them at trial through a Criminal Procedure Rule 12(b)(2) challenge to defective charging documents.