Move comes amid a widening crackdown on dissent

The case is unrelated to the high-profile arrest late last month of Lai

Lai calls support for him proof I am doing the right thing'

Reporters say high-profile raid, in which police officers rummaged through documents on their desks,

Lai has been one of the most prominent democracy activists in the Chinese-ruled city and an ardent c

Samuel Chu says he will not be intimidated after China placed him and five other Hong Kongers on wan