He was stopped for a traffic violation , police say . A New Jersey man is under arrest after a routine traffic stop led to a search of his apartment and the discovery of bomb-making materials and weapons , Roselle Park police said . Police got a warrant to search his apartment . Weapons , including an assault rifle , and canisters of black powder are found .
He was stopped for a traffic violation , police say . Police got a warrant to search his apartment . Weapons , including an assault rifle , and canisters of black powder are found .