LEO and military personnel recieve only very minimal training due to the "people in charge" having the belief that it is not worth the cost to teach it. Their budgets are tight and they feel spending more money on equipment is more important. I served in the military and our training was almost worthless. As a former NRA instructor I witnessed lots of LEO qualifications and it was almost unbelievable how poorly trained and unsafe these guys were. On a few occasions we had LEOs come to our USPSA matches and they all left and never came back because they were so embarrassed.
Do not consider LEOs and "military vets" to be experts. A few may be, but the majority learn almost all of their skills by listening to other "experts" who are also clueless. It is a sad state of affairs.