N.Y. Dom. Rel. Law § 241

§ 241. Interference with or withholding of visitation rights; alimony\nor maintenance suspension. When it appears to the satisfaction of the\ncourt that a custodial parent receiving alimony or maintenance pursuant\nto an order, judgment or decree of a court of competent jurisdiction has\nwrongfully interfered with or withheld visitation rights provided by\nsuch order, judgment or decree, the court, in its discretion, may\nsuspend such payments or cancel any arrears that may have accrued during\nthe time that visitation rights have been or are being interfered with\nor withheld. Nothing in this section shall constitute a defense in any\ncourt to an application to enforce payment of child support or grounds\nfor the cancellation of arrears for child support.\n