[1] The bureau is headed by the Secretary for Constitutional and Mainland Affairs, Mr Erick Tsang.

In the re-organisation, the Bureau was also assigned portfolios relating to human rights and access to information as guaranteed in the Basic Law.

[7] In April 2022, the department revealed it had spent more than HK$16,000,000 on publicity to promote the 2021 Hong Kong electoral changes.

[9] In May 2023, the CMAB submitted proposals to forbid insulting the Hong Kong flag, both in real life and on the internet.

Hong Kong has seen a major surge in voter registrations, particularly among young people.

Nearly 386,000 people have registered to vote in the past year, a record high since the handover of Hong Kong.