The investigation was sparked by a report entitled Chinese Transnational Policing Gone Wild, by the Spain-based NGO Safeguard Defenders.Speaking in English, Wang told Dutch journalists he received a phone call earlier this year from someone claiming to be from one such station.Dutch foreign ministry spokeswoman Maxime Hovenkamp told the BBC: "The Dutch government wasn't made aware of these operations through the diplomatic channels with the Chinese government.Policing outposts like the ones China is accused of running could violate the territorial integrity of a host country by circumventing national jurisdictions and the protections afforded under domestic law.Chinese Foreign affairs spokesman Wang Wenbin said on Wednesday that what had been described as police stations overseas "are actually service stations for Chinese citizens abroad", and China fully respected other countries' judicial sovereignty."