Jimmy Lai’s Arrest Signals New Limits for Hong Kong Dissent

HONG KONG—China’s campaign to quash dissent in Hong Kong accelerated with the arrest of professional-democracy media baron Jimmy Lai, sending an ominous signal about the upcoming of a free press and the new limits on people complicated Beijing’s tightening grip on the previous British colony.

Mr. Lai was between ten swept up Monday, such as Agnes Chow, a 23-yr-outdated politician who is properly regarded for helping to guide professional-democracy protests, in the newest transfer by authorities to implement a new national security legislation imposed by the mainland on Hong…