SWAT officers, their training and operations are based on the "T" for
"team" - not as individual officers working alone. And my response reprinted here from a related thread:
I have had such training; it is not high tech. It is not neurosurgery. Most average people can find the sources of knowledge; then study, plan, equip, learn some basic skills, organize - and then use it and apply it in the form of minding their own castle. As needed or desired.
Remember that "clearing a room" in the context of SWAT teams is just one step in possibly many during one single scenario, and involves the integrated and overlapping function of each of several members as a team. Although much of the knowledge, skills and functions can be applied solo, there are other aspects of minding your own castle to consider.
Ideally you should own your castle for it to be considered truly your own, and this allows it to be the subject of some serious modification and rearranging, etc. The goal is to make it as friendly to it's master's safety as possible, and as unfriendly as possible to anyone who tries forced entry. Or having already entered, assist the master in seeking, dislodging or otherwise neutralizing an invader or invaders.
Simple things; real high tech gadgets such as small pocket telescoping inspection mirrors for looking around corners for example. Lighting that places your invader(s) at a disadvantage from certain approaches. Reflective objects situated in particular areas to allow some views otherwise involving substantial exposure and risk from a particular direction, hardened defensive positions etc. There a great number of ways to give you the advantage - even if you are renting.
Some other basic observations. Contrary to what apparently many here seem to think; the local PD will not respond to a "suspected" or "alleged intruder" call with a SWAT team - and might even send just a single officer. Who may or may not have had any training in "room clearing" whatsoever.
When your local PD finally arrives guess what; some, perhaps many of them, are going to want you to come outside and meet them. That means you may have to "clear" more than just a room or two to get out of your house to where they are.
If say you call the police, they take "five minutes" ( ) to get there, and about the time they arrive your badguy(s) panic and decide they are leaving and shooting starts you have the possibility that they may also run headlong into the local PD at a door, window etc with you in the line of fire behind them. If shooting starts and you decide to retreat, they might drive you like a game animal into the waiting guns outside. Now there is a further possibility that if the PD starts shooting you may have their bullets coming your way. Or their presence may mask your field of defensive fire - now you can not shoot in case you hit one of them.
IMO? Best to be prepared to handle suspected intruders yourself - or yourselves as applicable. Seek, study, learn, plan, organize, drill - be ready.
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