Land Surveying and Mapping Act Article 13

People who stack useless objects, hang ropes or paint or put stains on the permanent survey marks that subsequently leads to the negative impacts of the effectiveness of the permanent survey marks, an order to restore the marks to the original conditions with a given time-frame should be issued by the respective municipalities or the county (city) authorities concerned. If the order is not followed upon its expiration, the authorities concerned have the power to remove all the objects and obstacles on the survey marks and the persons receiving the order are liable for all the expenses incurred.
中文原文 國土測繪法第13條
在永久測量標上堆積雜物、懸掛繩索或塗抹污損,致妨礙永久測量標效用者,直轄市、縣(市)主管機關應限期令其恢復原狀;屆期未恢復原狀者,並得逕行排除或恢復原狀,所需費用由行為人負擔。

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