A 15-year-old boy and two others have been remanded in custody for allegedly conspiring to seek Hong Kong’s independence through a Taiwan-based political organisation in breach of the national security law. National security police on Friday levelled a charge of conspiring to commit secession under the Beijing-imposed law, a day after announcing their arrests and their alleged roles in the Hong Kong Democratic Independence Union. The 15-year-old Secondary Three student, who cannot be named for...