As much as it isn’t fair, the police will initially judge you on appearance, reactions, perceived truthfulness, and general demeanor. Ideally, you want to be viewed as a good, average, normal citizen who was faced with a bad situation despite your best efforts to avoid it. If you could be considered a “good citizen” by the average citizen, you will be better off.
If you are looked at as a fringe member of society, you will have a harder time of it. Think of it as the Sunday school teacher and baseball coach vs the biker. It’s not right but it is true.
This is obviously general advise (NOT legal advise) but a few things that may help and certainly won’t hurt are:
-avoid trouble whenever you can, even when not related to any particular incident; do the right thing always, but don’t get involved in stupid things like domestic disputes and drunk brothers-in-law; ideally, you want to be unknown to the local police when it comes to drama
-don’t hang out in questionable places or with questionable people; you are judged by who you associate with
-don’t advertise that you carry a weapon; don’t run off at the mouth about self defense issues (ie no “ya can’t be afraid to whip it out” or “if that ever happened to me, I kill that dude”—I cringe when I hear this stuff); even if you are saying it to your best friend or trying to impress your girlfriend, it can come back to haunt you
-watch what you say on the internet; it can come back to haunt you
-avoid bravado; a bunch of pictures littering your house of you dressed up with guns hanging off of you aren’t wrong but they might not be worth the risk either (remember that picture of Richard Jewel with the AR when they wrongly accused him of being the Olympic Park bomber…that was almost instant proof of guilt to the national media); skip the bumper stickers and T-shirts
-if you are ever involved in a self defense shooting don’t talk to the police beyond the basics like IDing yourself; talk to a compentent lawyer first
-be 110% honest; trying to skew things to look favorable will make you suspect instantly—this point can not be over stated—if you lie or appear to lie, you are in for major heartache
-be 110% honest with your lawyer; they need to know everything, good and bad; your lawyer doesn’t need suprises
-be honest about your training, if your lawyer decides you should discuss it; don’t underplay it and don’t overplay it