N.J. Stat. § 4:11-47
Any person who violates any of the provisions of this act, upon being found guilty, shall pay a fine of not less than twenty-five dollars ($25.00) nor more than fifty dollars ($50.00) for the first offense, nor less than fifty dollars ($50.00) nor more than one hundred dollars ($100.00) for the second offense, and not less than one hundred dollars ($100.00) nor more than two hundred dollars ($200.00) for the third or subsequent offense; if unable to forthwith pay any fine the violator shall be committed to the county jail for a period not exceeding ninety days. Any fine shall be recovered in the manner specified in article 4 of chapter 1 of Title 51 of the Revised Statutes. Jurisdiction of all cases arising out of violations of the provisions of this act is hereby conferred upon the municipal courts in the municipality in which such violations are committed. In any proceeding process shall be the same as that provided for in said article, and any weights and measures officer shall have the power to arrest any violator without warrant where there is a violation within his view and conduct him to a court having jurisdiction in the municipality where the arrest is made or the violation committed.
N.J.S. § 4:11-47