[conimbricenses]

Note the operative word - they "run" the drill, as in train their personnel to react around their 21 foot rule, already assuming that it is unquestionable "truth" even though it was really just a single cop's guesstimation that he used as a rule of thumb on the job.

Meanwhile it remains the case that there's never been an independent scientific demonstration of the even the Tueller drill's most basic premises - No statistical justification for 21 feet as opposed to 25 or 17 or anything else. No representative sampling of fitness in the general population to tell if it takes the "average" knife guy 1 second or 3 seconds or 10 seconds to move. No controlled or replicable measurement of human reaction times, save simply running the drill with cops while already taking its underlying claims for granted. In short it's nothing more than anecdotal guesswork.

That observation is no matter of my anonymity or expertise (of which I choose not to volunteer or advertise though I am thoroughly confident that it well exceeds the typical GED-toting cop with a few hours at the academy and a "criminal justice" certification from ITT Tech). It's a simple and undisputed fact about the Tueller drill: it is NOT scientific. So treat it and use it as the rule of thumb that it is and that it was originally written by Officer Tueller to be. But don't try to pass it off as something it is not just so you can duck behind it to justify violent and reckless behavior that costs other human lives.

[freedomwarrior998]

Note the operative word - they "run" the drill, as in train their personnel to react around their 21 foot rule, already assuming that it is unquestionable "truth" even though it was really just a single cop's guesstimation that he used as a rule of thumb on the job. Meanwhile it remains the case that there's never been an independent scientific demonstration of the even the Tueller drill's most basic premises - No statistical justification for 21 feet as opposed to 25 or 17 or anything else. No representative sampling of fitness in the general population to tell if it takes the "average" knife guy 1 second or 3 seconds or 10 seconds to move. No controlled or replicable measurement of human reaction times, save simply running the drill with cops while already taking its underlying claims for granted. In short it's nothing more than anecdotal guesswork. That observation is no matter of my anonymity or expertise (of which I choose not to volunteer or advertise though I am thoroughly confident that it well exceeds the typical GED-toting cop with a few hours at the academy and a "criminal justice" certification from ITT Tech). It's a simple and undisputed fact about the Tueller drill: it is NOT scientific. So treat it and use it as the rule of thumb that it is and that it was originally written by Officer Tueller to be. But don't try to pass it off as something it is not just so you can duck behind it to justify violent and reckless behavior that costs other human lives.

You stepped in it, just as I knew you would. Research into the Tueller drill has been conducted. Since you appear to be completely ignorant, I'll help you along. The The original Tueller article appeared in SWAT magazine in 1983. Numerous other individuals HAVE conducted research into Tueller's premise, and by in large vindicated his point, in fact, many suggest that 21 feet is probably too close.

The research done by Dr. Lewinski used high-speed camera footage, and documented numerous officers and suspects of varying degrees of experience and athleticism. Lewinski documented average response and reaction times, as well as the time that it takes for the suspect to cover a set distance.

You can read about his work here:

http://www.forcescience.org/

Secondly, Tueller never suggested that his work was a "rule", nor did he ever say that one is automatically justified in shooting someone holding a knife when they are standing 21 feet. I never said that either. You are committing a very elementary internet debating fallacy called "creating a straw man." It's pretty laughable considering your inability to verify that additional research into Tueller's premise has been conducted by a variety of individuals.

(BTW: Law enforcement certification doesn't come from "ITT Tech" and the trend is to require a college degree for law enforcement work, so you merely demonstrate your ignorance yet again.)