Secretary for Justice v Yau Yuk Lung Zigo and Another (Chinese: 《律政司司長訴丘旭龍》) was a controversial and significant judicial review court case in Hong Kong.

The case also led to the creation of a new judicial review standard regarding discrimination and, later on, the extension of protection against domestic violence for LGBT community.

In April 2004, the two male respondents in the case, who were 19 and 30 at the time, were found in engaging anal sex in a car parked beside a quiet and dark highway.

The case was brought before a magistrate, Mr John T. Glass, whom then ruled Section 118F(1) unconstitutionally discriminatory against gay men and thus dismissed the charges.

In assessing the constitutionality of Crimes Ordinance Section 118F(1), the Court of Final Appeal created the justification test.

(Court of Final Appeal judgement, paragraphs 25–30) Both parties, the Government and the respondents, of the case stated that the Magistrate had mistakenly dismissed the charges after the declaration of Section 118F(1) unconstitutional.

(Court of Final Appeal judgement, paragraphs 63–67, 70-71 & 87) (Court of Final Appeal judgement, paragraphs 11, 20–21) The Equal Opportunities Commission suggested the Legislative Council to extend the protection covered under the Domestic Violence Ordinance to same sex couples in case of potential violations of this case's merits.