Knives legal in NJ - as collection, NOT FOR EDC

As long as you have a lawful reason I guess. Not sure if “skewering commie bastards” counts

Aren’t some SCUBA knives double edged?

What if it is triple edged?

I would assume that carrying a scuba knife while scuba diving would be considered a lawful purpose. Though it might have to be in the trunk while traveling to said scuba diving activity.

This state is too f’ed up to know for sure.

But the law specifically states “dagger”, not “double edged knife’”. Not sure if something marketed as a scuba knife could be considered a dagger.