“The police have been dropping in on investment firms and downloading their transaction records. Senior executives at China’s biggest investment bank have been arrested on suspicion of illegal trading. A business journalist has been detained and shown apologizing on national television for writing an article that could have hurt the market. The Communist Party’s response to China’s monthslong stock market crisis has been swift and forceful. In addition to spending as much as $235 billion to buy shares and bolster prices, the authorities have imposed a range of extraordinary restrictions on the sale of stocks — and backed them with the full weight of a security apparatus usually more focused on political dissent than equity trades.”
Source: In China, a Forceful Crackdown in Response to Stock Market Crisis – The New York Times