Forget the home alarm, I want that dog! I'd leave my gun out in plain sight if he was watching it for me. Wow! That is a cool couple of dogs. Once they are wound up I notice they don't come off the target very easily.
The average person does NOT want dogs like these. They will quickly get out of control in untrained hands. But I'm sure you could see a glimpse of that in the video. K-9s are very special and highly-skilled dogs. They need handlers that are highly-skilled, too.
My step dad used to raise and train dogs for law enforcement.