Graphic: Weapons confiscated last year by Paterson police. A new state program is gathering unprecedented information about illegal guns traveling into New Jersey, and police expect to tap that data this year as part of a statewide crackdown on weapons used in violent crimes. New Jersey has some of the strictest gun laws in the country, but they can’t stop people from bringing weapons here from less regulated states. Almost three-quarters of guns recovered in New Jersey were purchased elsewhere, according to federal data released last year. To help stanch that flow, New Jersey will become the first...