Residents in China's restive western province of Xinjiang have been told that biometric details including a voice print must be submitted in passport applications.Police in Xinjiang's Ili (in Chinese, Yili) made the announcement this week, reported Radio Free Asia.”The requirements for travel document applications have changed, with effect from June 1,” the Ili Daily, the regional mouthpiece of the ruling Chinese Communist Party, reported.The biometric data that must be given includes a DNA sample, fingerprints, a voice-print sample, and a 3D body scan image to receive their documents, the Chinese newspaper reported.RFA's Uyghur Service contacted the police to confirm the new regulations require DNA samples and other biological data for any travel document.”We can take DNA samples here in the police station. We take blood samples, fingerprints, voice prints and photos. We take some blood samples from applicants for a DNA record. Then one can go to local passport office to apply,” a police officer told the newspaper.The Munich-based World Uyghur Congress, a Uyghur diaspora organization, has criticised the move: “Controlling resident's biological data through an inappropriate way is not matter of national security. We don't see it as a normal procedure. We are against it and see it as a violation of human rights,” he told RFA.