Yesterday (9 June 2019) local time 15:00 approximately, HKers took to the streets to protest the Extradition Law in HK. This law allows HK to send suspects back to their own country, including back to China. And we're having none of that! The law states that you're innocent until proven guilty; extradition goes against that.

Quote from the SCMP article:
[The extradition law] would allow the transfer of fugitive[s] [sic] to places with less than robust legal systems, including mainland China.


SCMP Article: