Hong Kong’s Secretary for Security, Chris Tang, stated booksellers are responsible for ensuring books comply with national security laws following recent arrests at two bookstores. Authorities arrested five individuals this week linked to the bookstores but have refused to release a list of specifically banned titles. Tang emphasized the “law is clear” regarding unlawful publications, placing the onus on sellers to self-censor. He indicated that authorities expect booksellers to proactively verify their stock against national security concerns. Critics have raised concerns over potential chilling effects on freedom of speech and the lack of transparency regarding prohibited content. The move intensifies scrutiny of publishing and bookselling within the city under the security law. This policy aims to prevent materials perceived as threatening national security from circulating.