In State v. Falcon, 68 Conn. App. 884, 887, 793 A.2d 274, cert. denied, 260 Conn. 924, 797 A.2d 521 (2002), the defendant appealed from the judgment of conviction, rendered after a jury trial, of criminal possession of a pistol or revolver, claiming, for the first time on appeal, that the trial court improperly had presided over his trial and sentencing after having actively participated in plea negotiations two years earlier. The Court afforded plain error review and held that because the existence of impartiality might reasonably be questioned and the fairness and integrity of and public confidence in the judicial proceeding affected, the trial judge committed plain error in failing to recuse himself. Id., 887-89. Accordingly, the judgment was reversed, and the case was remanded for a new trial. Id., 889.