Exactly correct!
You have a head start being a law abiding citizen with a lawful presence where you are, like in your own home having to shoot (a) home invader(s).
And, if in a state like Tennessee that has the Castle Doctrine, and No duty to retreat laws on your side all the better.
But, still most everywhere in the US regardless until the responding LOEs sort everything thing out, everyone is suspect until they identify everyone present, and determine the circumstances which, may be a bitt tricker.
Did you shoot someone that you were having unlawful dealings with?
You may think that you are innocent until proven guilty, but looking at it from the LEO’s perspective you might also be guilty until proven innocent, yet to be determined.
Having whatever your state calls it’s CCW permit/license let’s the LEO know that at lease as of the date of issue that you had pasted a
criminal background check.
Without that, he may be dubious of your background and legality.
At least you help him lower his anxiety level a notch, and he may not be as worried about you.
Without that CCW you may not enjoy that level of confidence in you until he gets his field requested criminal background check back, and you might remain in handcuffs until he does.
I try to do what I can to help that situation.
1-by providing my Real photo ID DL with 
, veteran indication, and organ donation 
indicator,
2-my retired military ID, I spent my life in service of my country, not in prison,
3-maybe my US Passport Card, but that’s redundant, as the indicates I am a citizen is on my DL, and my being veteran is also indicated, but he now has corroborating forms of ID, they love that, and gets a fuller picture, I even have my voter registration card, not every felon has that.
Additionally, having a CCW would be nice to add to that Royal Flush.
I don’t know if you live in a Smart 911 participating community but, my county does, there is an app for that, and you can sign up/on for that if you wish.
I am older with older people medical concerns so I though I would get with this program for that medical aspect alone, and other good reasons.
It’s a data sharing app with answers a 911 dispatcher might share with your first responders be they medical, fire, or law enforcement.
It gives them all the 411 info they might find useful in better responding to you especially if for any reason you cannot communicate it that well during your call in which your medical condition or an intruder might interfere.
Also, on arrival of LE an intruder may easily be lying his ass off about who’s who, and what happened.
So, basically you have all that on easy file retrieval by the 911 operator who can clearly see your name, address, and phone numbers, plus a lot more, your DL #, everyone else associated with that address, including pets down to their long chip numbers, your medical conditions, any vehicles associated with your address that belong, your photos, if EMS responds they know your primary existing medical conditions, and what to look for directly vs. an unguided assessment to figure out what might be wrong wasting valuable time.
If Fire responds how many to get out w/o missing anyone.
If law enforcement who all belongs, including what vehicles, and who is not a household member, and what vehicles might belong to intruders vs. having no clue, and having to wait for replies to inquiries.
It just seems to make sense that in any emergency scenarios that you might be hindered from supplying all that, or don’t have the time, or might forget to mention something, they already have it all.
As a medic EMS first responder I can say that information is gold to them, and much appreciated.
I also got a “Yellow Dot” on my rear window of my vehicle, you can request them from your state DOT, comes with a yellow plastic folder with the same medical logo to keep some basic vital information in your glove box, if you are in an accident, or having a medical event first responders know what that your dot means, that you have information in your glove box that may be vitally important about someone in your vehicle, and also a photo they can match with the right person in the vehicle, and some basic information.
I provided extra printed pages knowing what might be useful, space is limited on the forms provided but, is still vitally helpful like who your doctor(s) is/are and what conditions, and medications they might like to know about.
It also helps ID you more specifically when you get to a hospital, that they are treating the right person and know good to know stuff like any allergies you might have.
A big part of NCO academies in the military is teaching communication skills in battle field scenarios under less than optimal circumstances.
If you’re not shooting, you should be reloading, moving, communicating.
If you don’t communicate you are isolated, what we call OTF out there flapping on your own, if you need help, you have to let others know, and loctation, and situations are vitally important to communicate.
I highly recommend that.
person criteria which, basically is not being a criminal.