Authority on military installations concerning MPs and DACP? Looking for any and all regs, laws etc. detailed to work schedules, training.

SSG (Join to see), I recommend you have a look at the DES web site for the base you're talking about. I searched for Directorate of Emergency Services (Army) and came up with the Fort Benning web site: http://www.benning.army.mil/garrison/des/

Then I looked at Fort Meade's DES page: http://www.ftmeade.army.mil/directorates/des/des.html

The DES would certainly be a good starting point for the information you are seeking.