During the Hong Kong Protests, many nonprofit human rights groups had come forward to provide their service pro bono. One of them is Spark Alliance Humanitarian Funds. Spark Alliance primarily offered pro bono legal aid and bail assistance to the arrested, remanded, and charged. At the time, Hongkongers had never experienced such a high volume of arrests. Therefore, most people were unfamiliar with the legal process. The nonprofit groups were supported and funded by the public.
In December 2019, the anti-extradition nonprofit was targeted by the police. The National Security Bureau later arrested and charged four people from Spark Alliance for money laundering using a crowdfunding platform.