I don't argue with the point that there's a supervisory requirement for the maintenance of discipline, and therefore you have to feed into the chain of command. But in many instances an assault is an assault, whether it's inside the military or outside the military. You can go through the whole list of Criminal Code offences and they're all the same.
Putting Mr. Drapeau's accuracies or inaccuracies aside, he makes the generalized point that the European Union in particular--27 nations, I believe--are moving toward a much more civilianized approach to military justice. That in effect reduces the conflict between the chain of command--which has a particular agenda, shall we say--and the proper prosecution of a Criminal Code offence, which may or may not have a coincidental agenda.
I'll go back to the core question here. On the issue of discipline, why do we need officers to be judges?