Section 311.4 - Substitution of petition or finding1. At any time in the proceedings the court, upon motion of a respondent or its own motion, may, with the consent of the presentment agency and with the consent of the respondent, substitute a petition alleging that the respondent is in need of supervision for a petition alleging that the respondent is a juvenile delinquent.2. At the conclusion of the dispositional hearing the court, upon motion of the respondent or its own motion, may in its discretion and with the consent of the respondent, substitute a finding that the respondent is a person in need of supervision for a finding that the respondent is a juvenile delinquent.3. In any proceeding under this article based upon an arrest for an act of prostitution, there is a presumption that the respondent meets the criteria as a victim of a severe form of trafficking as defined in section 7105 of title 22 of the United States Code (Trafficking Victims Protection Act of 2000). Upon the motion of the respondent, without the consent of the presentment agency, a petition alleging that the respondent is in need of supervision shall be substituted for the delinquency petition. If, however, the respondent has been previously adjudicated as a juvenile delinquent under this article for an act which would be a crime pursuant to article two hundred thirty of the penal law, if the respondent was an adult, or expresses a current unwillingness to cooperate with specialized services for sexually exploited youth, continuing with the delinquency proceeding shall be within the court's discretion. The necessary findings of fact to support the continuation of the delinquency proceeding shall be reduced to writing and made part of the court record. If, subsequent to issuance of a substitution order under this subdivision and prior to the conclusion of the fact finding hearing on the petition alleging that the respondent is a person in need of supervision, the respondent is not in substantial compliance with a lawful order of the court, the court may, in its discretion, substitute the original petition alleging that the respondent is a juvenile delinquent for the petition alleging that the respondent is in need of supervision.N.Y. Family Court Law § 311.4