In extreme close-quarter encounters where a suspect is attempting to take an officer's handgun, or an officer cannot access his or her handgun, the TDI knife is available as a "last option" knife. When worn on the pant belt the entire unit - knife and sheath - is well concealed. The TDI Law Enforcement Knife was designed by John Benner, founder of the Tactical Defense Institute. Constructed of AUS 8 stainless steel with a non-reflective black coating and a textured handle, it is a valuable tool in extreme close quarters where a suspect is attempting to swipe an officer's handgun. Includes a friction sheath for excellent retention and easy draw from the waistband or ankle.