I see your point and yet there is madness we do need to deal with whether or not there is a test. My sister who was already struggling with special needs due to an extra  chromosome and failing spinal column in her neck,  started to hear voices when she turned 18. She was never on any brain altering drugs before this. She said the FBI was going to kill her. She wouldn't wear black or blue clothes anymore and was living in fear of them killing her. Before this she was just a happy loving girl.  Her voices are not a danger to society, but others are. She is hard to calm down when the schizophrenio clicks on. You can see it in her eyes. It is not the same girl. There is madness, and we just need to find a way to not institutionalize people unless they really need it to make sure it isn't abused. Maybe you need 2-3 outside opinions and multiple family members showing video evidence to a court that the person is a danger to society? I don't know, but some people's madness will drive them to kill others or themselves. Edit: I would never want my sister in one but she isn't violent. She is hard to deal with, but not a danger. And maybe she is the smart one to fear the fbi.