Witness Protection Act Article 10

The executing authority should frequently review its execution of the protective order. If the reasons that the witness should be protected are disappear or unnecessary more , the executingauthority may terminate the protective order by obtaining prior approval from the prosecutor, judge or judicial police agency. If the protection is still necessary under some change of circumstances, the executing authority may modify the protective orderby obtaining prior approval from the prosecutor, judge or judicial police agency.If it is necessary to reinstate the protective order after the protective order was terminated, the prosecutor or the judge may reissue and execute the protective order either by its authority or by the petition from the person stated in paragraph 1 of Article4 or the executing agency.
中文原文 證人保護法第10條
保護措施之執行機關,應隨時檢討執行情形,如危害之虞已消失或無繼續保護之必要者,經法院、檢察官或司法警察官同意後,停止執行保護措施。
但其因情事變更仍有繼續保護之必要者,得經法院、檢察官或司法警察官同意,變更原有之保護措施。
停止執行保護之案件,有重新保護之必要者,檢察官或法院得依職權或依第四條第一項之人或執行保護機關之聲請,再許可執行保護證人之措施。

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