Everyone I know who carries a single action auto carries cocked and locked.
I don't currently know anyone who carries an auto pistol with the chamber empty.
I know ONE peace officer who carries a DA revolver, a Colt Detective Special, with first chamber up empty--That is, not under the hammer.
I only know a couple of guys who carry autos with "carry options," like the CZ75 and clones, and the big Taurii, but none of them carry cocked and locked.
Those who carry conventional DA autos MOSTLY carry with safety off, but some have safety on.
My acquaintences and colleagues are a pretty conventional bunch, really, except - - -
I know one retired officer who often carries single action revolvers a lot, always with chamber under hammer empty. He is one of the few I consider competent to do this. I have been on the range when he did the law enforcement qualification with the SA, including the rapid reloads.
Best,
Johnny