NJ S4662

Requires courts to hold hearings for juveniles aged 18-20 who violate probation or are arrested on juvenile warrants to determine whether detention should be in a county juvenile detention facility, adult county jail, or Youth Justice Commission secure facility

Mandates a court hearing when any detained juvenile turns 18 to decide whether to continue detention in the juvenile facility or transfer to an adult jail or Youth Justice Commission facility

Establishes specific factors courts must consider at detention hearings, including danger to other juveniles, gang affiliations, nature of alleged crimes, prior delinquent history, physical and mental maturity, self-harm risk, and other aggravating or mitigating factors

Credits juveniles with time served during the 60-day period prosecutors have to file waiver motions seeking to transfer cases to adult court, applying the credit toward any final disposition resulting in detention

Requires trial or final disposition of juvenile cases within two years of intake, excluding delays caused by the juvenile