N.J. Stat. Ann. § 5:8-16

If a person subpoenaed to attend in any such investigation or hearing fails to obey the command of the subpoena without reasonable cause, or if a person in attendance in any such investigation or hearing refuses, without lawful cause, to be examined or to answer a legal or pertinent question or to exhibit any book, account, record or other document when ordered so to do by the commissioners holding such investigation or hearing, the commission may apply to any judge of the Superior Court, upon proof by affidavit of the facts, for an order returnable in not less than 2 nor more than 10 days directing such person to show cause before the judge why he should not comply with such subpoena or such order.