Illinois Civil Commitment: No Trial, No Verdict, No Release Date

Illinois locks up more than 500 people at a downstate prison under a civil commitment law that demands no conviction, no trial, and no fixed release date.

About 170 of those people were never found guilty of any crime. James Howe is one of them.

Howe spent nine years inside Big Muddy River Correctional Center after prosecutors charged him with aggravated criminal sexual assault and domestic battery. They didn’t secure a conviction. They didn’t need one. Under Illinois’ Sexually Dangerous Persons Act, prosecutors petitioned to have Howe evaluated as a sexually dangerous person. The criminal case stopped. He went to the prison for treatment instead of facing a jury.

“That’s the weird thing about that law is that they don’t have to convict you of the crime, but yet they put you in a prison,” Howe said. “I mean that right there says it all, does it not?”

The mechanics of the law work like this. After a sex offense charge, prosecutors can petition a judge to order psychological or psychiatric evaluation of the defendant. If the evaluators conclude the person is likely to engage in sexually dangerous behavior going forward, the criminal case halts entirely. The accused gets routed to Big Muddy for treatment. There’s no jury verdict. There’s no sentencing hearing. The detention stretches on with no guaranteed endpoint, no mandatory release, and no clear ceiling on how long it can last.

Illinois is one of a small number of states that runs a pre-conviction civil commitment statute of this kind. It’s a legal question that doesn’t draw much argument at the Daley Center or in Springfield committee rooms, but for the men caught inside it, the stakes couldn’t be more serious.

“They put you in a prison,” he said.

Mark Carich built Big Muddy’s SDP program in 1995 and left in 2012. He’s said publicly that the program no longer functions the way it was designed, that it’s drifted from its original purpose of reducing sexually violent crimes in Illinois. When Carich built it, there was a therapeutic framework meant to move people toward release. He believes that framework has broken down.

That’s not a small accusation from a man who spent years running the place.

When the program works as intended, patients demonstrate measurable progress, evaluators certify that progress, and a judge can order discharge. But civil commitment cases reviewed by WTTW News in 2026 show the path to release is murky for many men held at Big Muddy, and for some, it looks nonexistent. People can spend a decade or more inside without ever having been convicted of the offense that landed them there.

Defense attorneys have argued for years that the SDP designation functions as a workaround. When the state’s criminal case can’t survive a trial, they contend, prosecutors can use civil commitment to detain a person anyway. The American Civil Liberties Union has raised constitutional concerns about indefinite civil commitment of this type, pointing to the due process questions baked into any system that holds people without a guilty verdict.

Prosecutors push back hard. They say the law protects the public from people who pose a genuine documented danger, that conviction or no conviction doesn’t change whether someone is likely to reoffend. Both positions carry real weight. That’s what makes this particular legal corner so difficult to resolve.

Illinois’ SDP statute has roots in an era when lawmakers wanted tools to keep high-risk offenders off the streets even when criminal cases fell apart. What’s harder to defend, critics say, is a system where about 170 people currently sit in a prison setting without a guilty verdict on the books, some of them having entered the facility years ago with no clear indication of when, or whether, they’ll leave.

Howe got out. Many others haven’t.