New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 4A-36

a. If the court waives jurisdiction over a case and refers that case to the appropriate court and prosecuting authority, there shall be a hearing before the court waiving jurisdiction to decide whether to detain the juvenile pending resolution of the case. If detention is deemed necessary, there shall be a presumption that the juvenile shall be detained in a county juvenile detention facility, unless good cause is shown that it is necessary to detain the juvenile in a county jail or other county correctional facility in which adults are incarcerated.

b. Upon conviction in the appropriate court and where detention pending sentencing is deemed necessary, there shall be a presumption that the juvenile shall be detained in a county juvenile detention facility, unless good cause is shown that it is necessary to detain the juvenile in a county jail or other county correctional facility in which adults are incarcerated.

c. Good cause under this section shall be based on the best interests of the juvenile and protection of the public, and shall take into account such factors , including but not limited to, the juvenile's age and maturity, the nature and circumstances of the offense charged or for which the juvenile was convicted, the juvenile's prior offense history, the programs available at juvenile detention facilities, and any other relevant factors.

d. A juvenile who has been waived to an appropriate adult court shall not be remanded to a county jail or other county correctional facility in which adults are incarcerated prior to the hearing provided for in subsection a. of this section.