Regulations for the Employment of Privately Contracted Armed Security Personnel on Board R.O.C. Vessels Operating in High Risk Areas Prone to Threats by Pirates or Illegal Forces Article 4

The captain of the R.O.C vessel employing privately contracted armed security personnel shall be responsible for the administration and supervision of weapons (firearms, knives, etc.) and ammunition in their possession or use from the time they board the vessel to the time they depart from the vessel.Records of possession and use of weapons (firearms, knives, etc.) and ammunition for the period between boarding and departure, as prescribed in the previous paragraph, shall be kept, and the vessel carrier shall immediately report any usage to the shipping administration authority.Privately contracted armed security personnel prescribed in the first paragraph shall reasonably use their weapons (firearms, knives, etc.) and ammunition in the face of urgent needs, not to exceed the extent necessary.
中文原文 中華民國籍船舶於受海盜或非法武力威脅高風險海域僱用私人武裝保全人員辦法第4條
中華民國籍船舶僱用私人武裝保全人員持有或使用之槍砲、彈藥及刀械,自登船至離船期間之管理及監督應由船長負責。
前項槍砲、彈藥及刀械自登船至離船期間之保管及使用應建立紀錄保存船舶運送業並應於使用後立即通報航政機關。
第一項之私人武裝保全人員應基於急迫需要,合理使用槍砲、彈藥及刀械,不得逾越必要程度。

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