ChatGPT helps Vietnamese homestay owner uncover guest's drug operation

Authorities credited the vigilance of the homestay owner, a 23-year-old woman, for uncovering the crime.

After noticing suspicious behavior from the guest, Nguyen Huu Quyet, 28, she reported her concerns to local police, leading to his quick apprehension.

Nguyen Huu Quyet when being arrested, April 4, 2025. Photo by police

Quyet rented a room at the homestay in March. He bought chemicals and materials to manufacture drugs inside his room, later selling them via social media.

The homestay owner became suspicious when Quyet frequently purchased ice cubes and exhibited "odd behavior" while using the refrigerator.

She consulted ChatGPT, asking about "criminals using ice cubes," and received a response stating that ice cubes "can be used to preserve or assist in the production of illegal substances."

"I was very scared, but as a responsible citizen, I had to inform the police," she said.

Nguyen Huu Quyet shows the tools he use to produce drugs at a homestay in Quang Ngai. Photo by police

During questioning, Quyet admitted his actions, explaining he had learned drug production techniques in Cambodia before moving to Quang Ngai to conduct his activities.

Police said Quyet disguised the drugs as essential oils, soft drinks, and e-cigarettes, specifically targeting students and young adults, groups particularly vulnerable to drug abuse.

In Vietnam, the illegal production of narcotic substances carries penalties ranging from two to 20 years in prison, life imprisonment, or even the death penalty, depending on the severity of the offense.