New York Consolidated Laws, Vehicle and Traffic Law - VAT § 397-a. Radar detectors and laser detectors prohibited

1. No radar detector or laser detector shall be used in any motor vehicle with a gross vehicle weight rating of more than eighteen thousand pounds or in any commercial vehicle with a gross vehicle weight rating of more than ten thousand pounds.  The presence in such vehicle of a radar detector or laser detector connected to a power source and in an operable condition is presumptive evidence of its use by any person operating such vehicle.  Such presumption shall be rebutted by any credible and reliable evidence which tends to show that such radar detector or laser detector was not in use.

2. The provisions of this section shall not be construed as authorizing the seizure or forfeiture of a radar detector or laser detector, unless otherwise provided by law.

3. A violation of the provisions of this section shall constitute a traffic infraction punishable by a fine of not less than twenty-five nor more than one hundred dollars.