If you were to find something like this nice Hubertus in your attic and realized it was a switchblade, you should turn it in to your nice Law Enforcement Officer,(like Me), who would taek it off of your hands and in gratitiude for your civic-minded law abiding spirit would probably buy you a few boxes of .380/.38Spl/9mm to practice with. 8^)
There's no exemption for military under Indiana law.
IC 35-47-5-2 Knife with blade that opens automatically or may be propelled Sec. 2. It is a Class B misdemeanor for a person to manufacture, possess, display, offer, sell, lend, give away, or purchase any knife with a blade that:
(1) opens automatically; or
(2) may be propelled;
by hand pressure applied to a button, device containing gas, spring, or other device in the handle of the knife. As added by P.L.311-1983, SEC.32. Amended by P.L.70-2000, SEC.2.