Abstract: Methods of detecting the presence of concealed weapons and determining the type of weapons with a greater degree of certainty and reliability. The method involves tagging of the weapon with a radioactive marking that produces penetrative radiation, and providing radiation detectors at entrances to commercial and private residences, airlines, vehicles and other places. According to a preferred method, the tagging or marking of the weapon is in a form of a digital coding; and a different common coding is applied to each different kind of weapon. For example, hand guns receive a common code of one type; knives a different code; explosives a third different code, and the like.

Abstract: A nonlethal weapon providing high voltage electrical shocking potential. When not in use, the weapon is contracted or collapsed to a small size for conveniently carrying it in the pocket or purse, and is rapidly put into active use by triggering the extension of an elongatable probe carrying the high voltage contacts.