International expo in Beijing showcases cameras that measure vital signs, and even core motivation, of suspects, equipment firms say.

Chinese AI-enabled equipment can help police assess the physical health, mental state, and even risk level of suspects, according to demonstrations at a law enforcement equipment exhibition in Beijing last week. Chinese firms presenting their latest biometric devices at the international police and anti-terrorism technology expo said they could reduce manpower requirements for a police force and improve efficiency amid a shortage of frontline officers. The three-day exhibit which ended on…

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