>> step out, kunkel. >> cecil kunkel's future is largely in his own hands now. with his trial about to get under way, he is released from his courtroom holding cell. although he will be allowed to change into civilian clothing to face the jury, the jury will never know underneath his shirt is a stun belt to prevent any misconduct. >> this thing ain't going to go off now, is it? >> i don't know. it depends on if you're squirrelly, it may go off. it's kind of sensitive. >> have you worn one of those before? >> no. first time. >> first time? >> one leg up. >> first time for everything, you know? >> you know what it is? >> i guess it's some type of taser device, i guess. i don't know. i don't know. i don't want to know what it is, tell you the truth. >> later, kunkel's moment of truth finally arrives. >> you do solemnly swear the testimony you're about to give will be the truth, the whole truth and nothing but the truth so help you god? >> yes, i do. >> he is about to take the stand and hopes to convince a jury that he only sold stolen checks to an undercover officer because