Shanghai police rely on a surveillance network to keep an eye on crowds in the city. Photo: CCTV

Happy Lunar New Year: how big security data is scanning the holiday crowds in China

  • Four years after tragedy struck in Shanghai, police throughout China are using new technology to keep track of crowds and individuals
Topic |   Surveillance

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Shanghai police rely on a surveillance network to keep an eye on crowds in the city. Photo: CCTV
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