The prisoners had filed a petition in the Supreme Court seeking protection.
Ratwatte had allegedly threatened to kill two inmates at the Anuradhapura prison recently.
Ratwatte had allegedly gone to the Anuradhapura prison on Sunday 12th September and forced two prisoners to kneel and threatened to kill them.
Justice Minister Ali Sabry has appointed a committee to probe the incident.
He said recently that appropriate action will be taken once the retired High Court judge completes investigations and submits a report.