Establishes crime of selling or purchasing marijuana from unlicensed businesses.

S 4154 creates new criminal penalties for unlicensed marijuana businesses and purchases in New Jersey. It makes it a third-degree crime (3-5 years prison, up to $15,000 fine) for unlicensed business owners to manufacture, distribute, or dispense marijuana, and a second-degree crime (5-10 years, up to $150,000 fine) for leaders of multi-location illegal networks. It also establishes a disorderly persons offense (up to 6 months, $1,000 fine) for knowingly buying marijuana from unlicensed businesses. The bill directly affects unlicensed marijuana sellers, their leaders, and consumers purchasing from such sources, while granting police authority to shut down violations and seize illegally sold marijuana.