Holdout Cavity

Usually implanted somewhere in the torso, a holdout cavity is a small recess shaped into the wearer’s body and designed to be overlooked by most standard forms of medical or security scanning. It automatically defeats a security inspection that uses less than TL4 scanners, and even advanced tech requires careful personal inspection to have a chance of revealing it. The cavity can hold an object up to the size of a pistol and is opened and shut by the user’s mental command.