If this helps you, at all, and im not going to share an opinion about this, but only some information.(in my specific state atleast, of Maryland, though id assume this is the standard, since medical care is rather standard in the country) Anyone who claims to feel the urge to harm themselves and tells an officer is detained, taken to the local hospital, and has an emergency petition done upon them to review their mental status. They are then questioned by the hospital, and deemed whatever they evaluate. They may release them upon their own will, or hold them for quite some time, but at that point, you are essentially owned by the state, and dont have a voice, until you are questioned of course.
It seems as though the government believes that you have a right to live, regardless of your belief, and of course they will medicate you to do so. I unfortunately dont have much more information to give past the hospital questioning part, so the rest is a mystery.
Hopefully this will help you, either that or just raise further question and prolong what could be a controversial thread.