A Taiwanese man successfully sued his wife and her lover for damages after discovering an affair, but was subsequently sentenced to prison for using a robot vacuum to secretly record the intimate encounter without consent.
A court ruling released in Taiwan revealed a complex legal outcome in which a husband obtained a civil victory but faced criminal consequences for the methods used to gather evidence. The man, whose identity has been protected, married in 2021 and lived with his parents, visiting a holiday home only occasionally. In September 2023, he became suspicious after discovering a used toothbrush at the holiday home and later identified an unknown man in parking garage footage who had driven his wife home.
Three months later, the husband remotely activated the couple's robot vacuum cleaner through its mobile application and used the device's built-in camera to capture his wife in an intimate encounter with another man. He recorded footage showing the wife changing clothes and in unclothed states within the home, which he then used as evidence in a civil lawsuit. The court ruled that the relationship between the wife and her alleged lover had exceeded ordinary friendship and ordered them to pay the husband NT$500,000 (approximately US$17,000) in compensation, significantly less than the NT$2 million he had initially sought.
However, the wife countersued for unauthorized recording, and the court sided with her despite the husband's argument that the footage had already been accepted as evidence in the civil case. The court determined that marital obligations do not override an individual's right to privacy and found the recording was intentional. Noting that any alerts from the robot vacuum were insufficient to establish consent, the court sentenced the man to five months in prison and imposed a fine of NT$150,000. Under Taiwanese law, secretly recording private activities without authorization carries penalties of up to three years imprisonment and fines reaching NT$300,000.