Ok so how do you de-escalate when the perp charges for you? If you are wrong, again, innocent bystanders and/or yourself may be killed. I'm not saying that everyone who runs or says bad words to an officer should be shot, I'm saying if someone physically strikes or attacks an officer, they have to operate with the assumption that the gun is on the table, anything less is incredibly irresponsible. A relevant article:
The results were published this spring in the journal Injury Prevention. The study revealed information that surprised Swedler. First, an overwhelming number of the officers—93 percent—died from gunshots. "We expected guns to be commonly used," Swedler says, "but we thought that homicides would be perpetrated by other means as well. We were really surprised by that 93 percent." In 10 percent of cases, officers were shot with their own guns. In 43 percent of the homicides, the victims were working alone, often responding to domestic disturbance calls. "They would arrive on the scene and they would be ambushed and they weren't prepared," Swedler says.
https://hub.jhu.edu/magazine/2013/fall/guns-kill-cops-statis...
The results were published this spring in the journal Injury Prevention. The study revealed information that surprised Swedler. First, an overwhelming number of the officers—93 percent—died from gunshots. "We expected guns to be commonly used," Swedler says, "but we thought that homicides would be perpetrated by other means as well. We were really surprised by that 93 percent." In 10 percent of cases, officers were shot with their own guns. In 43 percent of the homicides, the victims were working alone, often responding to domestic disturbance calls. "They would arrive on the scene and they would be ambushed and they weren't prepared," Swedler says.