Comilang v Commissioner of Registration
Comilang v. Commissioner of Registration was a 2011–2013 case against the Hong Kong Immigration Department by a former foreign domestic helper (Milagros Tecson Comilang) who is the sole custodial parent of a child (Zahrah Noor Ahmed) who has permanent residence status in Hong Kong.
Source: Wikipedia — Comilang v Commissioner of Registration (CC BY-SA 4.0)