Whether the Double Jeopardy Clause bars cumulative convictions and sentences imposed in a single trial for two offenses that are the same under the Blockburger test when the legislature has clearly authorized cumulative punishment.
Holding
No. In a single trial, the Double Jeopardy Clause does not bar cumulative punishment that the legislature has specifically authorized, even if the statutes are construed to punish the same offense under Blockburger.
Reasoning
The Double Jeopardy Clause protects against both successive prosecutions and multiple punishments for the same offense. But Hunter faced only one trial. In the multiple-punishment setting, the Clause's function is limited: it prevents a sentencing court from imposing punishment greater than the legislature intended.
Blockburger supplies a rule for determining whether two statutes ordinarily should be understood to authorize separate punishments: each offense must require proof of a fact the other does not. But the Court treated that test, in this context, as a rule of statutory construction rather than an inflexible constitutional prohibition.
Whalen reflected the ordinary presumption that Congress does not intend cumulative punishment for offenses that are the same under Blockburger. Its result depended on the absence of a clear contrary indication of legislative intent. Albernaz likewise explained that the decisive constitutional question is what punishment the legislature intended to authorize.
The Missouri Supreme Court had construed Missouri's statutes as covering the same offense under Blockburger, and the United States Supreme Court accepted that state-law construction. But the Missouri court also recognized that the legislature clearly directed that punishment for armed criminal action be imposed in addition to punishment for the underlying felony. That express authorization ends the statutory-construction inquiry.