There is universal law pertaining to anti-discrimination on persons with disability, including mental incapability. The Disability Discrimination Ordinance (Cap. 487) protects individuals with disability in different areas, including public, employment, education, provision of goods, services and facilities, access, disposal and management of premises, participation in clubs and sporting activities, and activities of the Government (Department of Justice, 2015).

References:

Department of Justice. (2015). Cap. 487 Disability Discrimination Ordinance. Hong Kong Retrieved from https://www.elegislation.gov.hk/hk/cap487.