N.J. Stat. § 4:9-15.45: Immunity for refusal to sell, report of suspect purchases, certain circumstances.

4. Notwithstanding any provision of law to the contrary, any person who refuses to sell a restricted commercial fertilizer to any person, or any person who reports information to a law enforcement official or agency concerning the suspect purchase pattern of any person attempting to purchase a restricted commercial fertilizer shall be immune from any civil liability on account of the report, unless such person has acted in bad faith or with malicious purpose.

L.2005,c.37,s.4.