Section 290.10 - Trial order of dismissal1. At the conclusion of the people's case or at the conclusion of all the evidence, the court may, except as provided in subdivision two, upon motion of the defendant, (a) issue a "trial order of dismissal," dismissing any count of an indictment upon the ground that the trial evidence is not legally sufficient to establish the offense charged therein or any lesser included offense, or (b) reserve decision on the motion until after the verdict has been rendered and accepted by the court. Where the court has reserved decision and the jury thereafter renders a verdict of guilty, the court shall proceed to determine the motion upon such evidence as it would have been authorized to consider upon the motion had the court not reserved decision. If the court determines that such motion should have been granted upon the ground specified in paragraph (a) herein, it shall enter an order both setting aside the verdict and dismissing any count of the indictment upon such ground. If the jury is discharged before rendition of a verdict the court shall proceed to determine the motion as set forth in this paragraph. 2. Despite the lack of legally sufficient trial evidence in support of a count of an indictment as described in subdivision one, issuance of a trial order of dismissal is not authorized and constitutes error when the trial evidence would have been legally sufficient had the court not erroneously excluded admissible evidence offered by the people.3. When the court excludes trial evidence offered by the people under such circumstances that the substance or content thereof does not appear in the record, the people may, in anticipation of a possible subsequent trial order of dismissal emanating from the allegedly improper exclusion and erroneously issued in violation of subdivision two, and in anticipation of a possible appeal therefrom pursuant to subdivision two of section 450.20, place upon the record, out of the presence of the jury, an "offer of proof" summarizing the substance or content of such excluded evidence. Upon the subsequent issuance of a trial order of dismissal and an appeal therefrom, such offer of proof constitutes a part of the record on appeal and has the effect and significance prescribed in subdivision two of section 450.40. In the absence of such an order and an appeal therefrom, such offer of proof is not deemed a part of the record and does not constitute such for purposes of an ensuing appeal by the defendant from a judgment of conviction.4. Upon issuing a trial order of dismissal which dismisses the entire indictment, the court must immediately discharge the defendant from custody if he is in custody of the sheriff, or, if he is at liberty on bail, it must exonerate the bail.N.Y. Crim. Proc. Law § 290.10