Iris scans, speech recognition and DNA
The facial image database is being expanded by the Chinese police with other data. For example, iris scans have been performed on people who have never been associated with a crime. The first regional iris analysis database was established in 2017 in the Xinjiang region, home to the oppressed Uyghurs. This database would already have a capacity of 30 million iris scans.
DNA is also collected on a large scale. In many western countries, these databases are limited to crime, while in China DNA also emphasizes collecting as many samples as possible. The first DNA database was due to be set up in 2014, but documents now show that 25 of China’s 31 provinces are equipped with DNA databases.
Special microphones with a range of about 100 meters allow the Chinese government to secretly record citizens’ voices. This ‘soundtrack’ is also added to a database.
In addition, the Chinese are widely followed via their smartphones. Equipment such as Wi-Fi sniffers and IMSI sensors are used to track smartphone movements. Such data is also more valuable for those who already have a lot of data: the government sees more than a few telephone numbers, but knows exactly who is who.
Source: RTL
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