Hong Kong’s Secretary for Security Chris Tang Ping-keung urges booksellers to ensure book titles do not violate national security laws. The remarks come a day after police raided two independent bookshops and arrested five people on suspicion of sedition. Tang says booksellers carry responsibility for preventing problematic material, and he reiterates that the government will not publish a list of “banned books.” He argues that such lists could be exploited by offenders who change a book’s title to fit within legal loopholes. The government’s position is presented as enforcement through existing national security legislation rather than through formal public bans. Across the reported accounts, Tang frames the guidance as a preventive measure for the book trade following the arrests and raids, emphasizing compliance with national security requirements in how books are marketed and sold.