N.J. Stat. § 43:16A-4.3
The board shall, upon receiving such application and such evidence, advise the employer of the submission of such application and request the employer to submit such evidence of a return of contributions to the member as the board deems necessary for the purposes of this section. The board shall within 60 days of receiving, pursuant to section 1 of this supplementary act, evidence supporting such application make a determination of the amount of service as a chanceman for which contributions to a municipal retirement system were made by the member and the portion of such service for which such contributions were returned to the member. Notwithstanding the provisions to the contrary of section 4 of P.L. 1944, c. 255 (C. 43:16A-4) or of any other law, the board shall thereupon credit to the member the remaining portion of such service as creditable service. Any employer of employees receiving credit for service under the provisions of this supplementary act shall be liable for the amount to be credited to the member's account. The actuary of the Police and Firemen's Retirement System shall calculate the amount of such liability and certify the same to the board. The board shall transmit to the employer notice of the amount due, and the employer shall within 60 days of receiving such notice remit such amount in full to the Police and Firemen's Retirement System.
N.J.S. § 43:16A-4.3