Punished for Broken Door Lock in Texas

Recently, two friends of mine were locked-up behind a faulty locking mechanism. For 3 months these guys made reports to maintenance about the cell door constantly reading "un-locked" when in fact it was locked. On one night, after rack-up, their door was opened by the duty officer. She claims there was paper stuffed in the door. She wrote up a case and these guys were found guilty. And now that they are gone, that cell door still has problems. There never was any paper and the right to due process was violated due to the fact that none of the defendants' evidence was allowed in court. These guys had one Sgt. and two C.O.s who were willing to testify on their behalf. None of it was allowed.