Then you may take the pebble from my hand.

I am not quite sure what you mean by that. Law enforcement tactical teams use many CQB techniques for high risk search warrants, hostage rescues, felony/fugitive warrant services and such. The main difference between LE and Mil CQB is the ROE, not the techniques themselves.

Video in post #'s 6 and 7 is Signal 88 Security. They're right here out of Omaha, NE.

I took the training for my CCW from them. They seemed to have their act together then, but again, that was just a CCW course. They did gave us a lot of value added, and I walked away with some solid stuff.

The guy with the Crinklaw name tape is Devin. Last I heard he was training OPD's SWAT guys. He was one of the instructors for that CCW course.

One of the other instructors for the course is a QP. A 10th Grouper I think. Interested QPs may PM me for his name, I'll not post it here.

I don't really know either of those guys, but I have a skilled friend who knows a least one of them (and possibly both) and speaks highly of him/them.

I am not sure whether they're still with Signal 88.

I'll leave the discussion of their technique to those more qualified than I.

Blood type on Clothing
 

As if any doctor in the United States (or overseas) would transfuse a unit of blood based solely on a cloth patch somebody has sewn onto a shirt.