A jailed person's admission of guilt IS the cops' case against that jailed person. A jailed person is a prisoner. Policemen are captors. If the cops had an actionable case against the jailed person then the jailed person's admission of guilt would be unnecessary. Don't let the cops hold court in an interrogation room. Nothing you say will be of ANY help to you. Telling your side of the story WILL NOT help you. Cops NEVER testify on behalf of those whom they've arrested and interrogated. Cops ALWAYS testify AGAINST those whom they've arrested and interrogated. If the cops have prosecutable evidence let the State's attorney exhibit it in court before a jury.