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1) He would have to prove the grievances are being destroyed and then he would be able to file suit for a civil rights violation for taking away his due process rights and violation of the jail rules with relation to grievance rights of inmates. This would be filed as a civil suit.
2) The inmate cannot be retaliated against for filing a writ of habeas corpus for release that they believe they are legally entitled to. The only way he could lose credits for good time is if thy find him guilty of some prison violation and they can take time away as punishment for that violation.
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