The New Jersey legislature has set forth four specific types of situations where you can potentially violate state weapons laws:
New York Jets running back Michael Goodson has been indicted on weapons charges stemming from a traffic stop in New Jersey. Goodson was discovered by police in Denville in May 2013. During a traffic stop, police recovered a loaded .45-caliber handgun and one hollow point bullet. Goodson faces unlawful possession of a weapon and possession of prohibited weapons and devices. Goodson's attorney says his client will be exonerated. Full article on http://online.wsj.com.