This “killology” stuff is a cancer within American policing. Not to say the rest doesn’t have a lot of problems. But this is the worst of the worst and many PD unions fund this kind of training. https://twitter.com/travisakers/status/1385292068029927426

2/ I'd recommend reading up on the subject. But the gist is it trains police to approach encounters with the default assumption of a kill first or be killed mindset - even though very few encounters police officers will ever have actually resembles anything like this.

3/ Needless to say, training police to operate like this is a good way to get a lot of civilians killed. The deeper part of it is to desensitize people to what the originator of the theory rightly sees as an ingrained reluctance (he calls it a phobia) to kill other people.

4/ One might fairly phrase as a training to overcome the fact that most people are not sociopaths. As others have noted, this is a kind of training that might arguably have some value in war fighting contexts. But civilian policing is not a war, though obviously there ...

5/ are some overlaps and police need to be prepared to use lethal force in certain circumstances to protect the public and themselves. In any case these trainings train police to see their jobs as akin to combat and to see much of their work through the prism of the quite ...

6/ rare instances where they genuinely face a split second decision that will determine whether they're killed or kill a homicidal assailant first. Policing, whatever its ills (and there are many) is a stressful and sometimes dangerous job. But this stuff is flawed ...

7/ on the merits, a cancer within the profession of policing and, as I said, a good way to get a lot of civilians killed.

8/ tl;dr the fact that it's called "killology" is probably a good tip off that it ain't good.