if you are a police officer and want to train a system of m/a that best fits you ,i would train aikijujutsu or in my opinion,Hakko ryu jujutsu.I have trained many police officers in hakkoryu and my instructor is the sheriff in the county where i live.his rank is shihan and is a police defensive tatics instructor as well as pressure point control tactics as well.I am in school finishing up my associates degree in criminal justice and know how useful these techniques can be.in your proffession,pysical confrontations are a every day occurance and with videocameras out there any police officer is at risk of brutality law suits,the days of watchman style policeing are gone.train in hakkoryu for one year and you wont have to strike anyoneanymore to make them comply with your commands.it utilizes a certain kind of grip with the hand that when combined with some of the other techniques allows the assilant to be resrtrained without inflicting any damage at all.i always see the t.v show cops and i notice in some of the arresting scences that it takes three guys to cuff the perpand their all wrestling around trying to get this guys hand to cuff,its sensless for all of that to happen,not to mention dangerous.seriously,check around for info on hakkoryuor come to galesburg il somtime.