The Regulations Governing Rewards to Prisoners Article 10

Where the prisoner is found to receive rewards through improper means, the prison shall cancel the rewards and revert the circumstance back to the original state in appropriate ways.
中文原文 受刑人獎勵實施辦法第10條
經查獲受刑人以不正當手段獲取獎勵,監獄應取消獎勵,並以適當方式回復原狀。

English translation for reference only; the Chinese text prevails. Not legal advice.