I dont mean any disrespect to the man but i have serious doubts about his "practical aikido" i have owned and watched his videos, and was very unimpressed. As i stated above chin na would be more applicable to police work. As it would be easier to learn in a shorter amount of time, with a whole lot of more locks and such. Chin na encompasses alot of muscle grabs and pressure point manipulations as well which would be highly effective in police work.
After further thought i have decided that i am not the right person to speak on this as i havent achieved anything in my life what so ever let alone Aikido. So please disregard my comments.