Sadly paranoid schizophrenics who make criminal threats against themselves and others ... and refuse to take their medication... are typically released from custody after a day or 2. They freely roam our cities and too often hurt or kill:
Machete-wielding ex-A&M player who killed White Rock jogger deemed unfit for trial
link...Johnson spent three days in a court ordered psychiatric facility where there was finally a clinical diagnosis of schizophrenia. Upon release, he refused all treatment. Over the next two years of Johnson’s life, he struggled with both mental health and substance abuse. His family was at a loss for how to help him when he became delusional and resistant to treatment.
Institutionalization is the only answer for people like Johnson who refuse treatment or for whom treatment is ineffective.