Constitution of the Republic of China (Taiwan) Article 126

In the hsien, there shall be a hsien government with a hsien magistrate who shall be elected by the people of the hsien.
中文原文 中華民國憲法第126條
縣設縣政府,置縣長一人。
縣長由縣民選舉之。

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