On a sunny Tuesday afternoon in September, Liang Xiaojun received a knock on the door. "There were 15 of them: national security police, regular police, justice bureau folks," he remembers.
Liang is a human rights lawyer in Beijing, an endangered species since 2015, when China's government questioned or detained more than 200 of his colleagues. Now he wonders if they're coming for him.
"They told me this was just a preliminary check. Next week, they'll send more police. It's possible they'll arrest me, but I mustn't live in fear."