Regulations Governing the Handling of Counterfeit and Altered Foreign Currency Notes and Coins Article 3

Where the counterfeit (altered) foreign currency notes or coins discovered meet any of the following conditions, a handling institution shall immediately record the real name, nationality, occupation and address of the owner and report the matter to the police for investigation:1.The total value of counterfeit (altered) foreign currency notes and coins presented for exchangeis 200 USD or more, or equivalent thereof; or2.The total value of counterfeit (altered) foreign currency notes and coins presented for exchangeis less than 200 USD or equivalent thereof, but the owner looks suspicious or declines to let thehandling institution retain the original notes or coins.
中文原文 偽造變造外國幣券處理辦法第3條
經辦機構發現持兌之偽(變)造外國幣券有下列情形之一者,應立刻記明持兌人之真實姓名、國籍、職業及住址,並報請警察機關偵辦:
一、持兌之偽(變)造外國幣券總值在等值美金貳佰元以上。
二、持兌之偽(變)造外國幣券總值未達等值美金貳佰元,且持兌人情形可疑或不同意經辦機構截留致無法處理。

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