A leaked document has shed more light on how thousands of Uighurs are being treated in China, showing how people are sent to reeducation camps for simply visiting foreign websites by mistake.
The 137-page report contains details about the daily lives of more than 3000 individuals in the region of Xinjiang, reports BBC News.
China has faced increasing criticism for its treatment of the Muslim minority, with critics accusing Xi Jinping's government of interning up to one million Uighurs in "reeducation camps".
China has denied any wrongdoing, saying the camps are part of an effort to provide vocational training and combat terrorism.
Dr Adrian Zenz, a China expert spoken to by the BBC, said the document appears to be genuine and is "the strongest evidence I've seen to date that Beijing is actively prosecuting and punishing normal practices of traditional religious beliefs".
The document focuses on 311 main individuals, and contains details of their backgrounds, religious habits, and relationships with hundreds of relatives, neighbours and friends, the BBC reports.
According to the BBC, the document appears to "directly contradict China's claim that the camps are merely schools".
The documents show why individuals were sent to the camps, often for seemingly innocuous reasons.
In one case, a woman was interned because she wore a veil many years ago. In another, a man was sent to the camp for applying for a passport, despite the fact he was classified as posing "no practical risk".
Another man was sent to a reeducation camp for "clicking on a web link and unintentionally landing on a foreign website",
In a paper analysing the data, Dr Zenz says it "provides the by far most detailed account of the inner decision-making dynamics of Xinjiang unprecedented campaign of mass internment".
"While confirming details from countless witness accounts, it reveals the witch-hunt line mindset that has been and continues to dominate social life in the region."
In documents leaked late last year two individuals "from New Zealand" were mentioned. The Ministry of Foreign Affairs and Trade (MFAT) said at the time it had no information suggesting any Kiwis were currently detained in the region, but did not rule it out.
New Zealand, along with 21 other countries, issued a joint statement last year condemning the Xinjiang detention centres.
