N.J. Stat. § 2C:33-16
Any person of legal age to purchase alcoholic beverages or cannabis items, who, in the case of alcoholic beverages, knowingly and without the express written permission of the school board, its delegated authority, or any school principal, brings or possesses any alcoholic beverages, or in the case of cannabis items, brings, possesses, or consumes, including by smoking, vaping, or aerosolizing, any cannabis items, on any property used for school purposes which is owned by any school or school board, is guilty of a disorderly persons offense. For purposes of this section, an alcoholic beverage includes powdered alcohol as defined by R.S. 33:1-1, and a cannabis item includes any item available for lawful consumption pursuant to the "New Jersey Cannabis Regulatory, Enforcement Assistance, and Marketplace Modernization Act," P.L. 2021, c. 16(C.24:6I-31 et al.).
N.J.S. § 2C:33-16