New York Consolidated Laws, Criminal Procedure Law - CPL § 470.20 Determination of appeals by intermediate appellate courts;  corrective action upon reversal or modification

1. Upon a reversal of a judgment after trial for error or defect which resulted in prejudice to the defendant or deprived him of a fair trial, the court must, whether such reversal be on the law or as a matter of discretion in the interest of justice, order a new trial of the accusatory instrument and remit the case to the criminal court for such action.

2. Upon a reversal of a judgment after trial for legal insufficiency of trial evidence, the court must dismiss the accusatory instrument.

3. Upon a modification of a judgment after trial for legal insufficiency of trial evidence with respect to one or more but not all of the offenses of which the defendant was convicted, the court must dismiss the count or counts of the accusatory instrument determined to be legally unsupported and must otherwise affirm the judgment.  In such case, it must either reduce the total sentence to that imposed by the criminal court upon the counts with respect to which the judgment is affirmed or remit the case to the criminal court for re-sentence upon such counts;  provided that nothing contained in this paragraph precludes further sentence reduction in the exercise of the appellate court's discretion pursuant to subdivision six.

4. Upon a modification of a judgment after trial which reduces a conviction of a crime to one for a lesser included offense, the court must remit the case to the criminal court with a direction that the latter sentence the defendant accordingly.

5. Upon a reversal or modification of a judgment after trial upon the ground that the verdict, either in its entirety or with respect to a particular count or counts, is against the weight of the trial evidence, the court must dismiss the accusatory instrument or any reversed count.

6. Upon modifying a judgment or reversing a sentence as a matter of discretion in the interest of justice upon the ground that the sentence is unduly harsh or severe, the court must itself impose some legally authorized lesser sentence.