ShatoDavis, that's exactly what I've heard from several MN & Utah certified Permit to Carry instructors, as well as from those who wrote MN Permit to Carry Law. You're most successful if you never have to draw and/or shot someone even for justifible reasons. But if you do, tell the responding law enforcement officiers as little as possible and no more than you legally required to before talking toa lawyer.
Basically, "the guy was attacking me, family, etc... there is the evidence... and I don't give my permission for any searches." They will do what they have to do under the law and you'll likely be taken into custody and booked, at least until you can talk to a lawyer and with the lawyer you give your side of events or maybe not at all.
It is a very sobering thing when you take the training to find out the seriousness and ramifications of defending yourself, family or innocents with deadly force. It's something each person needs to have clear in their mind what they can and will do, should the circumstances cause you to make that decision.