N.J. Stat. § 17B:33-8
In any action against an unauthorized foreign or alien insurer upon a contract of insurance issued or delivered in this State to a resident thereof or to a corporation authorized to do business therein, if it shall be shown that the insurer failed for 30 days after written demand accompanied by a copy of this section, all prior to the institution of the action, to make payment in accordance with the terms of the contract without presenting a colorable defense in law or fact, the plaintiff shall be entitled to recover consequential damages for such unjustified refusal as part of his cause of action, the said damages to be measured by the reasonable costs and expenses incurred by plaintiff, including costs and expenses for the services of counsel and for investigation, as well as interest, and the same shall be included in the damages set forth in the final judgment; but no item recoverable as costs in the action shall be included in such damages.
N.J.S. § 17B:33-8