Advocates for stronger gun laws say New Jersey’s “red flag” law will save lives, but others say it's an overreach of power and fear it will be abused.

The new law essentially allows certain people to raise a red flag when they think someone could be dangerous.

A family member, partner, ex or roommate can file an extreme risk protection order with police. A hearing is then held held to determine if the claims are valid, and a judge decides whether or not to take guns away from the individual.

Moms Demand Action says it will save lives not just from mass shootings, but from domestic violence and suicide situations as well.

"Nobody thinks that this is going to solve all these problems," says Reba Holley, with Moms Demand Action. "Suicide by gun is not going to go away, but if we can reduce it by half, we've been successful."

Advocates for the Second Amendment are worried.

"We're all about reducing violence," says Alex Roubian, president of New Jersey Second Amendment Society, "but stripping away people from their constitutional God-given right to defend themselves ... it's just a calamity in itself and I think it's overturning our Constitution."

He added he believes the “red flag” law will be abused by "vindictive people" and "law enforcement that don't believe you should have a firearm."