N.Y. Family Court Act § 335.1: Notice of defense of mental disease or defect

§ 335.1. Notice of defense of mental disease or defect. Evidence of

mental disease or defect of the respondent excluding his responsibility

under this article is not admissible at the fact-finding hearing unless

the respondent serves upon the presentment agency and files with the

court a written notice of intention to rely upon such defense. Such

notice must be served and filed before the fact-finding hearing and not

more than thirty days after the conclusion of the initial appearance,

whichever is sooner. In the interest of justice and for good cause

shown, however, the court may permit such service and filing to be made

at any later time prior to the conclusion of the fact-finding hearing.