Is Hong Kong’s autonomy in China under threat?

Hong Kong’s government is pushing ahead with a controversial extradition law despite mass protests. Although it is a semi-autonomous part of China, Hong Kong does not have an extradition agreement with Beijing. A proposal would allow for criminal suspects to be sent to countries where there is no extradition treaty.

On Sunday, an estimated one million people protested in Hong Kong in the biggest rally since Britain returned the territory to Chinese rule in 1997.

Critics fear China could use the law to target political opponents, and see this as another sign of the mainland eroding the city’s independent judiciary and political system.

Are people right to be worried? And what could this mean for Hong Kong’s future?