Support BladeForums! Paid memberships don't see ads! I am seriously thinking about buying a katana (I have training and know how to properly use one) for the purpose of self defense, I need to know the sword laws for something like this, it would rarly leave my home (though it might if need be) and would not be concealed (carried in the sheath I would hold my hand or mount on my back). I had thought of getting a handgun, but here in Cali you cannot purchase or possess a handgun until you are 21 (I am 18), thus I'm going with my second best weapon, the katana. I know I'll be asked why I need such a weapon for self defense so I'll explain that now, my father is an abusive drunk and I am scared he may try to find me out here in Cali, if he does, then I'm dead, literally. So far he has not tryed to come out here, but he is unpredictable and the cops here act too slow to be of much help if my father does show up unexpectedly. A normal sized knife would be no defense against my father, trust me, I've seen him get stabbed before, he pulled out the knife and beat the **** out the other guy. I've looked for local laws on sword carrying but have had no luck, can someone please help me find the info or tell me what you know about the legality of carrying/owning a katana at age 18 in California?