Actually it protects individuals from being tried twice for the same crime. In this case there was one trial, one verdict, one sentence, one sentence overturned and replaced with the required minimum. The Hammonds will get credit for time served.
“Actually it protects individuals from being tried twice for the same crime.”
It also protects individuals against sentence increases once the sentence is served. Very rarely are sentence increases allowed even with the judge being in error with sentencing. The only exceptions have been when judges have corrected their sentencing errors immediately, before the defendants began serving their sentence. Re-sentencing after time served is where double jeopardy comes into play.
Was the original indictment for terrorism? Was the original verdict for terrorism?