New Jersey Statutes Title 2C. The New Jersey Code of Criminal Justice 2C § 52-4.1

(1) Pursuant to N.J.S.2C:52-2, if the act committed by the juvenile would have constituted a crime if committed by an adult;

(2) Pursuant to N.J.S.2C:52-3, if the act committed by the juvenile would have constituted a disorderly or petty disorderly persons offense if committed by an adult; or

(3) Pursuant to N.J.S.2C:52-4, if the act committed by the juvenile would have constituted an ordinance violation if committed by an adult.

For purposes of expungement, any act which resulted in a juvenile being adjudged a delinquent shall be classified as if that act had been committed by an adult.

(1) Three years have elapsed since the final discharge of the person from legal custody or supervision or three years have elapsed after the entry of any other court order not involving custody or supervision, except that periods of post-incarceration supervision pursuant to section 25 of P.L.1982, c. 77 (C.2A:4A-44), shall not be considered in calculating the three-year period for purposes of this paragraph;

(2) He has not been convicted of a crime, or a disorderly or petty disorderly persons offense, or adjudged a delinquent, or in need of supervision, during the three years prior to the filing of the petition, and no proceeding or complaint is pending seeking such a conviction or adjudication, except that periods of post-incarceration supervision pursuant to section 25 of P.L.1982, c. 77 (C.2A:4A-44), shall not be considered in calculating the three-year period for purposes of this paragraph;

(3) He was never adjudged a juvenile delinquent on the basis of an act which if committed by an adult would constitute a crime not subject to expungement under N.J.S.2C:52-2;

(4) He has never had an adult conviction expunged; and

(5) He has never had adult criminal charges dismissed following completion of a supervisory treatment or other diversion program.