A Chinese wildlife park has sparked outcry after making visitors submit to facial recognition scanning, with one law professor taking it to court.
Professor Guo Bing is taking action against Hangzhou safari park, after it replaced its existing fingerprinting system with the new technology.
"I [filed this case] because I feel that not only my [privacy] rights are being infringed upon but those of many others," Guo, from Zhejiang University of Sci-Tech, said according to an audio recording of an interview posted by state-run Beijing News.
Guo is attempting to force the park to return the money he paid for an annual pass and highlight its misuse of data gathered by the software.
A court in Fuyang has accepted his case. He questioned why a wildlife park would need to collect such information and had doubts over data security and who would be responsible if any were leaked.
The case could possibly open wider debate in China over the use of such technology.
The park introduced facial recognition in July for annual pass holders and told those who did not register their biometric information by 17 October that passes would be invalid, Beijing News reported.
About 10,000 visitors hold the annual park passes which cost £150 ($195) for a family of four, the park told the paper.