the judges who decide the person is guilty can later change and say the person is innocent.

Q: those judges who render the person innocent can they later change their verdict and find that person guilty?

No. It is clearly spelt out on the same page where it says they can hear new evidence even when the accused on the way to capital punishment, that they can not change an innocent verdict.

Of course this is Israel, where anything can happen. A woman received a divorce decree. She then sued the husband for four hundred thousand shekels for damages in delaying ten years to fuflill the divorce decree. She won the case. The Bet Din then revoked her divorce decree saying that this was forcing her husband to give her a divorce retroactively.
Look if Rav Rachman's court is annulling marriages, why can the Israeli Bet Din's annul divorces?

Aryeh Shore

The answer is simple. Tha anullment of the get was based on the fact that it was halachacily unacceptable. However the marriages were sound so there is no basis to annul them