The abduction of five Causeway Bay Books staff by mainland agents was a warning sign the world failed to take seriously enough
The Case That Should Have Warned the World
In the last months of 2015, five people connected to a small Hong Kong bookshop disappeared. Causeway Bay Books was a modest operation, located in the basement of a commercial building in one of Hong Kong’s busiest shopping districts. It specialized in gossipy political books – lurid accounts of mainland leadership scandals, speculative biographies, the kind of material that mainlanders would cross the border to buy precisely because it could not be published or sold at home.
Between October and December 2015, five people associated with the shop vanished: Gui Minhai, a Swedish-Chinese publisher who disappeared from his apartment in Thailand; Lee Bo, a British national who disappeared from Hong Kong itself without using his travel documents or crossing any official border point; and three others who disappeared in mainland China. All five eventually appeared on Chinese state television giving what appeared to be scripted confessions.
The disappearances were the first public demonstration that Beijing was willing to deploy mainland state security agents to abduct people from Hong Kong, from third countries, and apparently to spirit a British citizen off British consular territory without any legal process. It was a warning that the world failed to take seriously enough.
Lee Bo: A British Citizen Vanishes on Hong Kong Soil
The most alarming case was Lee Bo. He was a British national. He disappeared from Hong Kong. His wife told authorities he had not crossed the border – his travel documents were left behind. The only explanation consistent with the evidence was that mainland security agents had crossed into Hong Kong and removed a British citizen without the knowledge or consent of Hong Kong’s government, without a warrant, without any legal authorization, and in direct violation of the Basic Law’s guarantee that mainland agencies may not operate in Hong Kong.
The British government’s response was muted. Beijing denied any wrongdoing. Lee Bo later appeared on Chinese television and claimed he had voluntarily returned to the mainland. The performance was not convincing. He was eventually released but remained on the mainland under what amounted to open-ended surveillance and control.
The British government’s failure to demand a full accounting for what happened to its citizen on its territory’s soil sent a signal to Beijing: the cost of this kind of operation was diplomatic embarrassment, not serious consequences. That calculation has informed Beijing’s behavior toward Hong Kong ever since.
Gui Minhai: A Swedish Citizen Imprisoned for Years
Gui Minhai’s case became the most internationally prominent. A Swedish citizen, he was abducted from Thailand in October 2015 and has spent most of the years since in mainland Chinese detention. Sweden repeatedly demanded his release. China repeatedly ignored the demands. In 2020, a Chinese court sentenced him to 10 years in prison for allegedly providing intelligence overseas – charges Swedish officials dismissed as politically motivated.
The European Union and multiple European governments called for his release. Gui remains imprisoned. His case is a stark demonstration of Beijing’s willingness to hold foreign nationals indefinitely when it judges the diplomatic cost to be manageable and the political value of detention to be high.
Human Rights Watch has documented Gui Minhai’s case alongside dozens of other instances of transnational repression by Chinese state security, establishing a pattern of behavior that predates the NSL and has only intensified since.
What the Booksellers’ Case Told Us About What Was Coming
Looking back from 2025, the Causeway Bay Books disappearances read as a precise preview of everything that followed. Beijing demonstrated in 2015 that it would not be constrained by Hong Kong’s legal autonomy when it wanted someone badly enough. It demonstrated that it would use extralegal abductions, scripted television confessions, and detention without charge as standard instruments of political control. It demonstrated that it would target not only mainlanders but foreign nationals – including British and Swedish citizens – when it calculated the international response would be tolerable.
Every element of the NSL, Article 23, the trial of the 47, the prosecution of Jimmy Lai, and the imposition of bounties on overseas activists was visible in embryonic form in the treatment of five booksellers between 2015 and 2016. The world watched, issued statements of concern, and moved on. The lesson Beijing drew was that it could do whatever it wanted in Hong Kong.
The Books Themselves: A Note on What Was Being Sold
It is worth pausing on what Causeway Bay Books actually sold. The titles included speculative accounts of Xi Jinping’s personal life, books about Chinese leadership scandals, and political gossip that would have been unremarkable in any democratic country. These were not classified documents. They were not weapons. They were books.
The fact that Beijing considered the sale of such books worthy of an international abduction operation – worthy of sending state security agents into British-administered Hong Kong to remove a British citizen – tells you something essential about the nature of the system that was always waiting to reassert itself after 1997. A government that abducts booksellers is not a government that was ever going to honor promises about democratic freedoms.
The Committee to Protect Journalists recognized the Causeway Bay Books case as a press freedom emergency at the time. The organization warned that if the operation went unanswered, it would signal open season on independent publishing in Hong Kong. That warning proved accurate.
Where Are They Now?
Gui Minhai remains in Chinese prison. Lee Bo lives under mainland supervision. The other three booksellers have largely disappeared from public view. Causeway Bay Books itself attempted a resurrection in Taiwan, continuing to publish critical material about the mainland Chinese leadership from a safe distance. The bookshop’s Taiwan operation is a small but genuine act of defiance – a reminder that the books can travel even when their publishers cannot.
The booksellers’ story is now part of the founding mythology of Hong Kong’s resistance and its diaspora. They were not politicians or lawyers or journalists. They were people who sold books. And Beijing came for them anyway. Hong Kong Watch continues to document their cases alongside those of the hundreds of others who have been detained, prosecuted, and imprisoned in the years since.
