The husband won NT$500,000 in a separate civil case, but the court found his recording violated his wife’s privacy.
TAOYUAN, Taiwan — A Taiwanese man who used a camera-equipped robot vacuum to record his wife with another man was sentenced to five months in prison after a court found that deliberately capturing the private images without her consent violated her sexual privacy rights.
The Taoyuan District Court ruling created an unusual split between two legal cases involving the same recording. The footage helped the husband win NT$500,000 in damages from his wife and the other man in a civil case over marital rights. In the later criminal case, however, the court concluded that proving the relationship did not give the husband a legal right to secretly record highly private images. The five-month sentence may be converted to an NT$150,000 fine, and the criminal ruling remains subject to appeal.
Reports describing the court decision said the couple married in 2021 and normally lived with the husband’s parents. They also used a vacation home in Guishan, a district of Taoyuan. The husband became suspicious in September 2023 after finding a used toothbrush and other belongings at the property that he believed belonged to another man. He later reviewed surveillance video from the building’s parking area and saw an unfamiliar man who had driven his wife to the residence.
On Dec. 24, 2023, the husband remotely activated a robot vacuum inside the vacation home through a mobile application. According to reports on the ruling, he said he originally intended to use the device’s communication function to speak with his wife. The vacuum’s live camera feed showed another man inside the home. The husband then deliberately turned on the recording function and captured private interactions involving his wife and the man.
The husband later used footage from the device in a civil lawsuit against his wife and the other man. He sought NT$2 million in damages for infringement of his marital rights. The civil court found that the relationship between the wife and the man had gone beyond the boundaries of an ordinary friendship and ordered them to jointly pay the husband NT$500,000. The ruling made the robot vacuum footage an important part of his successful civil claim.
His wife then filed a criminal complaint challenging how the recordings had been obtained. The husband acknowledged operating the robot vacuum and recording the images but argued that he had been gathering evidence to protect his marital rights. He also relied on the fact that the material had been accepted in the civil proceeding. The criminal court rejected the argument that the earlier use of the recording as evidence automatically made the act of creating it lawful.
The court found that marital obligations did not erase a spouse’s right to privacy inside a home. Judges acknowledged that proving an affair can be difficult because such conduct often occurs in private, but they concluded that evidence still must be gathered through methods that limit unnecessary intrusions. The wife retained a reasonable expectation of privacy in the residence, the court found, particularly when the images involved nudity and other highly private circumstances.
The husband also argued that lights or voice notifications from the robot vacuum could have alerted his wife that the device was operating. The court found those features did not establish that she knew a recording was being made or that she consented to it. Reports on the judgment said the husband did not simply receive the footage by accident. After seeing another man through the live feed, he specifically activated the device’s recording function to preserve the images.
The criminal ruling focused on protected images recorded on Dec. 24, 2023. Taiwanese reporting said the court reviewed other footage involving the wife and the other man but distinguished images that did not involve nudity from those covered by the conviction. The husband was ultimately found guilty of unlawfully recording another person’s sexual images and received a five-month prison sentence. The judgment allows the term to be converted at NT$1,000 per day into an NT$150,000 fine.
The case has since drawn international attention because the same recording produced sharply different consequences in civil and criminal court. Some reports have described the husband as having been jailed, but the available reporting on the Taoyuan District Court judgment says the sentence can be converted to a fine and that the decision can still be appealed. No final, unappealable judgment or confirmation that the husband had begun serving time was identified in the reviewed reports.
Author note: Last updated September 5, 2026.