It was meant to be a quick trip over the border to see the dentist.
Alex Wong, 35, and his girlfriend took the Hong Kong subway to the end of the line close to the Chinese border and then walked to immigration, where they would cross into Shenzhen.
Wong had completed the trip a number of times to seek cheaper medical services in China – a common practice for many Hong Kongers – but this time he would miss his appointment as he spent 21 hours handcuffed and in in police detention.
He was not charged with any crime but Chinese police had decided that he would be needed to “assist in an investigation” into Hong Kong’s ongoing anti-government protests after immigration agents found photos on his phone at the border.
Wong described himself as a “peaceful, rational, non-violent person” who participated in protests as a volunteer first-aid worker – one of hundreds who help protesters with tear gas or abrasions after clashes with riot police.
Nevertheless, the questions came.
“They asked me what happened and what I did during the government demonstrations,” he tells The Independent a week later, back in Hong Kong.
He says immigration agents looked through his photos, which they tried to download, and also at conversations on his social media apps.
After being question by border police he was taken away to a police station where he was questioned for another eight hours in a special interrogation chair that restricted his hands and feet.
“I asked for a lawyer but they said no. Even [when] I wanted to call my family, they said no,” he says.
Wong’s case is an extreme but increasingly phenomenon for residents of Hong Kong, a former British colony, as they attempt to cross the border in recent weeks.
While the Asian financial city returned to Chinese sovereignty in 1997, it was promised a special semi-autonomous status for 50 years and for now maintains a British-style legal system under the “one country, two systems” agreement.
Protests started in early June when residents thought those rights were being eroded by a legislative bill that would allow them to stand trial on a number of criminal charges in mainland China, a place known for political prosecutions, a high conviction rate.
Unlike Hong Kong, it also maintains capital punishment.
The bill was meant to bring the two jurisdictions closer together, according to Hong Kong leader Carrie Lam, but it has become a major wedge between the local government and hundreds of thousands of residents.
Now it seems many fears about Hong Kong’s relationship with China, and its very different legal system, are coming true even after the legislative bill was suspended with border detentions and interrogations of ordinary people appearing to be commonplace.
Beijing considers the protests to be inching towards “terrorism” while Chinese state media have also described it as a violent “colour revolution”, which may be one reason why it may be loathe for images and videos to circumvent the Great Firewall.
In the most high profile case to date, Simon Cheng, a Scottish trade and investment officer at the UK consulate in Hong Kong, was detained as he was passing through an immigration checkpoint as he returned from Shenzhen.
He spent 15 days in “administrative detention” in China, allegedly for soliciting prostitution, according to Chinese state media.
This is a vague legal manoeuvre often used to hold people without charge, and does not require Chinese policy to notify Hong Kong authorities that a resident has been detained.
Cheng’s case is even more concerning as he was detained at a train station on Hong Kong soil, according to Hong Kong Free Press.
The new express rail link sees passengers go through Chinese customs on the Hong Kong end of the station, meaning mainland law applies once they pass the checkpoint.
The immigration arrangement was controversial when it first announced and fears appear to be coming true, according to Jason Y Ng, convenor of the Progressive Lawyers Group in Hong Kong, with searches and detention now commonplace.
“The British consulate staffer was a prime example of the danger and his case has made the danger real,” says Ng.
He says the group was afraid of “invasion of privacy, denial of entry, possible arrest on the mainland, and installation of Trojan Horse apps” on residents’ phones which can relay information back to security services long after the interrogation is over.
Democratic Party legislator Lam Cheuk-ting, who was contacted to help with Wong’s case by his family and girlfriend, says he had personally been messaged about half a dozen cases of border detentions by concerned family and friends.
Other legislators have also been contacted as well, he says, but suspected there were many more cases of residents who had chosen to remain silent.
"For most of them the reason for their detention is the mainland [immigration] officers found some photos or footage of the protests of Hong Kong on their mobile phone,” he says.
“After the [recent] movement started, it has become very common. They check the mobile phones of the youngsters who wear black T-shirts to everyone [else],
“It has become common knowledge that you don’t bring your mobile phone to mainland China.”
Many, like Wong, are now reconsidering whether to travel at all.
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