text: still more strikingly,courts have distinguished between the two kinds of elements in contexts,similar to this one,in which the judicial task is to compare federal and state offenses.the assimilative crimes act aca,a,subjects federal enclaves,like military bases,to state criminal laws except when they punish the same conduct as a federal statute.the aca thus requires courts to decide when a federal and a state law are sufficiently alike that only the federal one will apply.and we have held that,in making that assessment,courts should ignore jurisdictional elements when the differences among elements of the state and federal crimes reflect jurisdictional,or other technical,considerations alone,then the state law will have no effect in the area.lewis united states,see also,at kennedy,dissenting agreeing that courts should look beyond jurisdictional elements,and focus only on substantive ones,in determining whether the elements of the two crimes are the same in such a case,we reasoned just as we do now that congress meant for the federal jurisdictional element to be set aside.