Gene that law may vary from state to state. Our state, and my information is from physicians, paramedics, ER drs., police, etc.,to repeat...he cannot be taken from his home by force. He has committed no crime.
In our state it's not illegal for someone of age to drink as much as the wish in their own home.
I can't imagine living where any "authority" has the right to enter my home telling me when I've had enough.
The only way he could be taken by force is someone (wife, family member) would have to lie to authorities saying he was threatening them or himself (via suicide).
That was actually one of my plans suggested by a police officer. (Police officers aren't attorneys either). The downside of that is twofold: 1) he can only be held for evaluation only for a finite amount of time.
2) I risk getting in trouble committing perjury.
Al-anon...we've known since childhood about alcoholism. It would serve me no purpose.
Years ago before retirement I discovered our area AA center was across street from work.
I walked over, got literature and had talks with former alcoholics, the counselors.