First off, Listen to Tom W.
Police (any LEOs here correct me if I'm wrong) do not like to give advice on weapons matters due to any possible liability. Hell even prosecuters won't tell you anything!
Your best bet is to read up on your state's revised statutes and see what is NOT allowed. State's revised statutes generally won't say what IS allowed, just what isn't.
I just moved to Nevada which is an open carry state. As long as your weapon (folding or fixed blade, or handgun) is in plain view, you are breaking no laws. I was initially told of this by the two guys in the gunshop in town. Well, I wanted to get the "real scoop" so I called the State Attorney General's office who then told me to call the State Police. I finally get a detective on the phone and was advised that "if you carry an automatic in an open manner, we HIGHLY URGE you to keep the chamber empty and remove the magazine from the weapon". I suppose I have to ask the bad guy to wait a second until I load my weapon so I can shoot him.
What the heck does "highly urge" mean?
LOL
That reminds me of the days before seat belt laws were inacted. The police "highly urged" you to use your seatbelt, but if you didn't, no harm, no foul.
At this point, I carry openly until I get into my truck, then place the weapon in the console. That's not considered concealed in this state.
I COULD walk around with a cocked and locked .45 but I would definitely be interviewed by the first LEO that saw me.
I went for the CCW just to save the hassle. I still have to wait about 6 months though.
Anyways, I drifted..... bottom line is to read your state revised statutes regarding carrying of weapons then make your choice.
If you need help finding them, drop me an email and I'll see if I can dig 'em up for ya.
Meanwhile, the knife is a "tool".
Good luck!
VG
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Vampire Gerbil: Nosferatus Rodentus Moderatus; similar to a domestic gerbil, except for the odd accent and little black cape.