警察人員執行職務使用槍械，經常發生因而致人受傷或死亡時，是否符合比例原則之適法性爭議。按判決不適用法則或適用不當者，為違背法令。本文從德國學說及司法實務判決之觀點，分析警察人員執行職務使用槍械之法律性質，及其合法性與否的審查標準與流程。再從我國警械使用條例之規定，以近年來發生警察開槍逮捕通緝犯，因而致通緝犯死亡，經法院判決有罪確定，因而引起社會輿論爭議的指標性案件為例，檢討其相關法律適用之問題，以供司法實務參考。

The use of firearms by the police upon law enforcement may often cause injuries or deaths. The consequences give rise to controversies over the legitimacy of such use while taking the principle of proportionality into consideration. A judgment which fails to apply rules or applies rules improperly is in contravention of the laws and regulations. This paper aims to analyze the legal nature of police use of firearms upon law enforcement and to explore the legality of review criteria and procedures for such use from the perspectives of the theories and judicial practice in Germany. Then, the discussions over the issues arising from the applications of law to the use of firearms are made by scrutinizing the Act Governing the Use of Police Weapons and taking the case found guilty by the court in Taiwan as an example, which has served as an indicator situation arousing social controversies because of the wanted being shot dead by the police while taking action for arrest. The conclusions obtained from the discussions regarding the applications of law will be served as a reference for judicial practice.