If your law requires a formal civil commitment order, signed by an actual judge or magistrate, before anyone shows up with guns, then I have much less of an issue with it. What I'm talking about are the statutes, like California's and Oregon's, which permit a "mere" 72 hour detention at a psych ward before ANY judge looks at the case.
For a case where I KNOW I am taking someone from their home for civil commitment, that is the case.
Now, if I go out to a home pursuant to a welfare check (common call: 911 gets a call from the daughter stating that Mom called her to say goodbye and that Mom is going to kill herself), I have to let the circumstances of each individual call guide my actions. If I have RAS that Mom is going to be violent, against herself or others, then I can place her into custody and deliver her for an evaluation and the potential of up to 72 hours observation before she goes before a judge. This 72 hours is actual clock hours, and it exists so that if she is taken into custody on Saturday at 0100, she can meet with the judge first thing in the morning on Monday.
Moreover, if a physician finds that Mom is not a danger to herself or others, he can release her at any time.
That's what happened to the guy in the OP.
Just for the sake of accuracy could you agree that the word 'peacefully' would be better than 'voluntary?' I don't know about Arkansas but in Indiana when there is even the hint of coercion a person is under duress and by definition cannot volunteer.
Peacefully and voluntarily are two different things. For example:
If I have a valid commitment order, all it states is that the subject must appear before the issuing judge at a stated place and time. It's the mental health version of a subpoena. My job is to get the person there. From there, the subject can volunteer to enter treatment, resulting in the voiding of the commitment order, or he can refuse, at which point in time he is committed against his will.
So, I would agree that the subject's agreement to accept my free ride to meet with the judge is not voluntary any more than agreeing to follow a subpoena.
That being said, I prepare for every service of a commitment order to be aggressive, and am pleased when they go peacefully. The day I start looking at their service as routine is the day that something will go very, very badly. And I need look no further than one of my fellow officers to see how badly. The scars will always be there.