Admittedly a lot of people think "voluntary" makes this a customer service situation where I'm not allowed to do that when the reality is that I just have to call somebody afterward to decide whether we're changing their status to involuntary or kicking them out and calling the cops.

In that exact moment where I judge a threat to self or others I'm 100% allowed to use my judgment to neutralize the threat provided I a) maintain their hemodynamic stability and b) only do what is precisely necessary to neutralize that threat. Now that exact risk assessment doesn't have as much formal training behind it as I think it should but it's also usually at least partially a team decision and if the assigned nurse is newish there's usually at least one nurse involved who has a decade plus experience (unfortunately these days that's usually me). But like I said, there's always a list of things I'm not allowed to do, but once significant threats of or actual violence happens, that list gets very short very quickly.

A lot of people think there's this secret third option where they're just allowed to buck up at my techs and throw things at them and that is just 0% ever a thing. I'll let them get one incidence of bucking up at me or throwing something small at me like a small paperback just so I can truthfully document that I tried to go the least restrictive route, but I never ask my subordinates to take on that risk since they don't have as many options to escape or get the situation back under control.

Idk, you'd probably get people coming in and making a scene just for the drugs