Since the story broke about the mysterious disappearance of controversial bookseller Lee Bo, officials and public figures from the pro-establishment camp have been running for cover. The accepted line to take has been that we don’t know all the facts, so it’s too soon to speculate. Chief Secretary Carrie Lam Cheng Yuet-ngor said the government was always concerned about the well-being of Hong Kong people, whether they were in the city or travelling on the mainland. Yet she refused to comment on Lee’s case other than saying that police were looking into it. Out of all the government people, only Fanny Law Fan Chiu-fun, a member of the Executive Council, has the courage to call a spade a spade. Speaking on a radio programme yesterday, she said: “If mainland security bureau officials were carrying out law enforcement and someone was kidnapped in Hong Kong, that would be a clear breach of ‘one country two systems’.” She added, however, that essential facts about the case were still not known, so people should not reach conclusions yet. WATCH: Protests in Hong Kong outside the Beijing representative’s office demanding answers over missing booksellers What we do know about the case is disturbing enough. Lee publishes and sells politically sensitive books banned on the mainland. Four of his colleagues have gone missing since October in Shenzhen and Thailand. The Immigration Department has no record of Lee leaving Hong Kong and his home return permit was left at home. Yet, he has called his wife in Hong Kong several times from phone numbers listed in Shenzhen. So the possibility that Lee was taken from Hong Kong and clandestinely sent across the border cannot be ruled out. Even the government is taking this possibility seriously. John Lee Ka-chiu, the acting secretary for security, admitted police were using established channels with its mainland security counterparts to determine if any Hong Kong resident was being detained. Raymond Tam Chi-yuen, secretary for constitutional and mainland affairs, when commenting on Lee’s case, said all mainland departments must follow “one country two systems”. The government must quickly get to the bottom of the case. The midnight knock on the door is not something we have had to worry about in Hong Kong. But if we do now, that would be the end of our way of life.