N.J. Stat. § 2A:84A-21.4
Upon a finding by the court that there has been a waiver as to any of the materials sought or that any of the materials sought meet the criteria set forth in subsection 3.b., the court shall order the production of such materials, and such materials only, for in camera inspection and determination as to its probable admissibility in the trial. The party claiming the privilege and the party seeking enforcement of the subpena shall be entitled to a hearing in connection with the in camera inspection of such materials by the court, during which hearing each party shall have a full opportunity to be heard. If the court, after its in camera review of the materials, determines that such materials are admissible according to the standards set forth in subsection 3.b., the court shall direct production of such materials, and such materials only.
N.J.S. § 2A:84A-21.4