. >> it's almost imorl to say. the weapon comes out so fast. there's a decision cycle, is there deadly threat, am i authorized to use deadly force? i've never seen anyone be able to save her. >> the most you can do is take him down before he takes you down. >> absolutely. >> i'm shaking right now. >> let me take this off. we're hearing so much of force lately in the news. but what do we know for use of force training, how well does it work, does it not work? does have it an effect on real outcomes? >> it's never been studied. we have a lot of anecdotal data, we have a story of an officer being well trained and performing well on the street but there's never been a widespread study. >> use of force -- >> it boils down to what a reasonable officer given the information they know at the time, being able to neutralize a threat with the appropriate amount of threat. that may be deadly force and it may not. >> but there's so much gray area in everything you said. >> absolutely. but these decisions and whether or not there was force required and if so