A Hong Kong court on Thursday denied bail to 32 out of 47 pro-democracy activists charged under a Beijing-imposed national security law, ending a four-day marathon court hearing. The group of activists was charged with conspiracy to commit subversion under the law and detained on Sunday over their involvement in an unofficial primary election last year that authorities said was a plot to paralyze Hong Kong’s government. The mass charges against the activists were the most sweeping action taken against the city’s pro-democracy camp since the national security law was implemented last June. With the 32 activists remanded in custody until the next court hearing on May 31, it means that a majority of Hong Kong’s pro-democracy figures will now be in jail or in self-exile abroad amid an ongoing crackdown on dissent in the semi-autonomous Chinese city. Bail proceedings for the activists began on Monday, often taking a full day and at times continuing into the early hours of the morning. The bail proceedings ongoing since Monday have lasted often a full day and at times into the morning, and several defendants have fallen ill. Under Hong Kong’s common law system, defendants are usually granted bail for non-violent crimes. But the national security law removed the presumption of bail, with a clause saying it will not be granted unless the judge has sufficient grounds to believe defendants “will not continue to commit acts endangering national security.” The 47 are part of a broader group of 55 activists who were arrested in January for their role in the primary elections. Eight of them were not charged on Sunday. The primary was aimed at determining the strongest candidates to field for a legislative council election that would give the pro-democracy camp the best chance to gain a legislative majority. The government later postponed the legislative elections, citing public health risks from the coronavirus. If the pro-democracy camp had won a majority, at least some members of the camp had plans to vote down major bills that would eventually force Hong Kong leader Carrie Lam to resign. Authorities said the activists’ participation in the primary was part of a plan to paralyze the city’s legislature and subvert state power. The national security law criminalizes secession, subversion, collusion with foreign forces to intervene in the city’s affairs as well as terrorism. Serious offenders could face life imprisonment. Prominent pro-democracy advocate Joshua Wong, who is currently serving a 13 1/2-month jail sentence on protest-related charges, as well as Benny Tai, the co-founder of the 2014 Occupy Central movement, are among the activists charged this week.