Hey guys, here in Cali butterfly knives are highly illegal to carry and such. To my knowledge, they're also very illegal to buy. Well, as fate would have it I just happened to find one in my garage and I'd like to know, do butterfly knives fall under the grandfather clause like all the hicaps I come accross in the ol' garage? Are they legal just to own? Or is it a flat-out crime to possess one in your home?