The husband of the woman who commissioned a Chinese-language billboard advertising foreign passports for sale in Bangkok was arrested at Don Mueang airport on Wednesday.
Qin Ling, 33, was wanted by the Immigration Bureau after an arrest warrant was issued by Chinese authorities for ID card fraud, police said.
Mr Qin’s visa had also been revoked and the bureau is planning to extradite him.
An investigation showed Mr Qin is the husband of Xu Na, 35, who was arrested on Tuesday in connection with the billboard in Huai Khwang district.
The billboard advertising 30-day service for those wanting a foreign passport or citizenship was spotted over the weekend and caused a major uproar online. Investigators found that one of the numbers displayed on it was Mr Qin’s mobile phone number.
Ms Xu was accused of working without a permit and is expected to be ordered to serve four months in detention, pay a 5,000-baht fine and be added to the immigration blacklist.