Always wondered why the military had carried semi-auto auto handguns long before police dept.'s did. I think the answer is in the nature of the work that military organizations do in contrast to the work that police departments do.
Rifles were, and are, the primary small arms weapons for military use. Handguns are more or less relegated to the role of "back-up". As a back-up weapon, reliability may not have been as important a consideration. Also, most soldiers were assigned to platoons or outfits and were typically covered by a fair amount of "friendly fire" during an engagement.
Police officers walking beats, however (especially before the days of radio communications), were more likely to be alone or in pairs when called upon to use their guns. Their side arms were their primary weapons, so reliability was of greater importance. In the early to mid 20th century, S&W or Colt revolvers were probably more reliable than semi-autos.
As Alan Ladd said (in the mid 2oth century): "Love is what goes on between a man and a .45 automatic that doesn't jam."
They have to survive mud, dust, extreme temperatures, rain, snow, and so on. I vaguely recall a memory that I read regarding revolvers not being good weapons for trench warfare and other messy conditions, because the cylinder could freeze up. That's part of the reason the US switched to the 1911.
In the early to mid 20th century, S&W or Colt revolvers were probably more reliable than semi-autos.
My guess would be the military would carry their sidearms condition three until they were in a combat situation, then go to condition one, whereas there were a lot of nervous nellies wetting themselves over over the thought of officers carrying a 1911 cocked and locked day in and day out.Always wondered why the military had carried semi-auto auto handguns long before police dept.'s did. I think the answer is in the nature of the work that military organizations do in contrast to the work that police departments do.
I didn't know it was that common. It seems like movies always, almost without exception show police at the time using revolvers, so I assumed that reflected reality, although I wasn't sure why that was given that semi-autos weren't exactly a new, untrusted thing.