I can post more now as I'm on my laptop vs phone (fat fingers).
There was 1 crackhead who a cop detained outside of Paris. The crackhead then resisted a little. The cop didn't have to take him down, but gave him a stern command to "relax". He was the only cop there. Mrs. CMO and I were about 20 feet away and hung around until back up arrived, just incase he needed assistance. We wouldn't help right off the bat, but wait until it's needed. Like the crackhead is ontop the cop MMA style or things like that. Due to airline rules, we didn't have OC, but only our firearms. OCing would be a good option to assist sooner and not wait. I immediately thought "FML, I don't got no OC". So this reinforced my importance of having OC. OC would be good too because TBH, you wouldn't want to touch this crackhead. He was super dirty and open sores.
I'm pretty sure if worst case happened and the cop did need our help, the Metro Chief wouldn't hang us out to dry, compared to HPD/prosecutors office here. They had a situation at Range702 where a cop was stabbed in the neck with a screwdriver and the bad guy got lit up by 3 CCW holders. The chief commended their actions for helping.
Many luxury retail places now have a velvet rope. Grab and dash is a thing now in Vegas and has been for a few years. Even the Fashion Show Mall now has armed security and K9. This is the mall where the HI woman was killed in the parking lot a few years ago. Outside of the Horseshoe, that mall area has armed security patrolling. They're in tactical gear too. Plate carrier, FDE uniform, gunbelt. They aren't police.
Times have changed where you need this on the strip.