According to PERF’s report, cops say “the 21-foot rule is a part of police culture, handed down informally from one officer to another, or mentioned in training, over the generations.” The author of the article, a Salt Lake City cop, urged his fellow officers to use defensive tactics to stay outside of that 21-foot zone, but police officials interviewed by PERF staffers say that over the years many cops took it to mean that there’s a 21-foot “kill zone” where deadly force is justified.
This shows that even when rules are put into place that there is misinterpretation if it is not explained in detail. Officers should have a 21 foot gap in between them and the suspect, but most officers assume that the 21 foot rule means if the suspect comes within that 21 foot zone its reasonable cause to shot. This is mind blowing.