The essence of the American criminal justice system is reactive, not predictive: You are punished for the crime you committed. You can’t be punished simply because you might commit one someday. You certainly can’t be held indefinitely to prevent that possibility.
And yet that is exactly what is happening to about 5,000 people convicted of sex crimes around the country. This population, which nearly doubled in the last decade, has completed prison sentences but remains held in what is deceptively called civil commitment — the practice of keeping someone locked up in an institution for months, years or even decades for the purpose of preventing possible future offenses. Full Article