Jason Ko 高麟
Call : 2019 (HK)
Set : Main
Practice Areas
Administrative and Public LawChanceryCommercial LawCriminal LawDefamationLand and Property LawProbate and AdministrationPublic International LawRegulatory and DisciplinaryTort and Personal Injuries
Contact
Email : [email protected] Secretary : Beatrice Chan [email protected]

Jason joined Chambers in 2019 upon completion of pupillage with Mr Philip Dykes SC, Mr Richard Yip, Mr Randy Shek, and Mr Robin Egerton. As a Charles Ching Scholar, he received advanced advocacy training in Stellenbosch, South Africa.

Jason was a seasoned mooter. During his studies, he represented the University of Hong Kong in the Philip C Jessup International Law Moot Court Competition (2018), where his team won the Hong Kong Champion and he was ranked the top 100 oralists internationally, and in the Red Cross International Humanitarian Law Moot (2017), where his team captured the international 1st runner up.

Jason accepts instructions in all areas of Chambers’ work. He has appeared (either in his own right or as a led junior) in all levels of court from the Magistrates’ Courts to the Court of Final Appeal. He can provide written submissions and conduct hearings in both Chinese and English.


  • PCLL, University of Hong Kong (2018)
  • LLB, University of Hong Kong (2017)

Charles Ching Memorial Scholarship (2019)

Hong Kong Champion and Best Memorials, International Top 100 Oralists, Philip C. Jessup International Law Moot Court Competition (2018)

International 1st Runner Up, Red Cross International Humanitarian Law Moot (2017)

Champion and Best Written Submissions, Inter-University Basic Law Moot (2016)

Champion and Best Oralist, Haldanes Criminal Law Mooting Competition (2015)

Champion and Best Oralist, Joint-University Mooting Competition (2015)

Dean’s Honours List (2015)

Rosita King Ho Scholarship (2015)

HKU Foundation Scholarship for Outstanding Students (2013)

Sir Edward Youde Memorial Prize (2013)


Part-time Lecturer (Non-Clinical), Department of Law, University of Hong Kong


Jason Ko, “Criminal Liabilities of First Aiders in Situations of Violence: A Hong Kong Perspective” (Oxford Human Rights Hub Blog, 18 October 2022)

Margaret Ng, Jason Ko and Kin Lau, “Is Hong Kong’s Riot Law ‘Respectable’?” (2020) 50(3) Hong Kong Law Journal 935-960

Jason Ko and Martin Lau, “Free Speech in Non-Public Spaces: Recent Developments in Hong Kong” (Oxford Human Rights Hub Blog, 8 November 2017)


Civil Litigation

Koo Ming Kown v The Baptist Convention of Hong Kong operating as Pui Ching Primary School and Pui Ching Academy [2022] HKCFI 3577 (led by Mr Abraham Chan SC and with Mr Richard Yip) – acted for the 1st Defendant in successfully resisting a “slip rule” application under O20 r11 with indemnity costs awarded

Re Chui Tak Keung Duncan [2022] HKCFI 2962; [2022] HKCFI 3480 (sole advocate) – acted for the Petitioner in a successful application to revoke the approval of the Debtor’s individual voluntary arrangement under section 20J of the Bankruptcy Ordinance (Cap 6); successfully obtained a bankruptcy order against the Debtor

Lai Chik Kun Michael v The Baptist Convention of Hong Kong [2022] HKCFI 728 (led by Mr Abraham Chan SC and with Mr John Leung) – acted for the Defendant in an application to strike out and in resisting an application for leave to amend pleadings, in the context of charitable trust and declaratory reliefs

Wong Chak Wing v Camelo Investment Limited [2021] HKCFI 3710 (with Ms Astina Au) – acted for the successful 7th Defendant in an 8-day High Court trial concerning non-contractual agency and fiduciary duties

Kyocera Corp v W Haking Enterprises Ltd [2021] 2 HKC 1 (CA); [2020] 1 HKLRD 121 (CFI) (both with Mr Richard Yip) – acted for the successful Plaintiff in a sale of goods dispute concerning the identity of contracting parties; and in resisting the appeal concerning the role of pleadings and the availability of limitation defence

HCA 175/2021 Aabitta Company Limited v Pure Living Inc Limited (sole advocate) – acted for the successful Defendant in an application to set aside default judgment

HCA 913/2020 Sun Shine Investment Holdings Limited v Pure Living Inc Limited (sole advocate) – acted for the successful Defendant in resisting an application for summary judgment

HCA 2009/2018 Ever Team Asia Investment Limited v Hing Man Mortgage Limited (sole advocate) – acted for the successful Plaintiff in an application for leave for amendment of pleadings and joinder of parties

Criminal Law

HKSAR v Cheng Tsz Ho [2023] HKCA 13 (with Ms Margaret Ng) – prison rights – successful bail pending appeal concerning prisoners’ entitlement to remission under Rule 69 of the Prison Rules (Cap 234A)

HKSAR v Zen Joseph [2022] HKMagC 12 (led by Mr Ambrose Ho SC, with Mr Johnathan Tsang) – freedom of association – whether trustees of a humanitarian relief fund are an “association of persons” liable for registration under the Societies Ordinance (Cap 151)

Secretary for Justice v Chan Po Hong [2022] 5 HKLRD 185 (with Mr Richard Yip) – acted for the Defendant in contempt proceedings, where the Court took into account the existence of parallel criminal proceedings, and imposed a suspended sentence

HKSAR v Lo Kin Man (2021) 24 HKCFAR 302 (led by Ms Gladys Li SC, with Mr Lawrence Lau and Mr Kin Lau) – freedom of assembly – leading case on the law of unlawful assembly and riot – common purpose, participatory intent and joint enterprise

Secretary for Justice v CMT [2021] 1 HKLRD 1 (CA) (led by Mr Hectar Pun SC in the Court of Appeal; led by Mr Paul Harris SC in the Magistrates’ Courts) – acted for the 1st Respondent in a sentence review concerning the principles on care and protection orders in sentencing juvenile offenders

Administrative and Public Law

Chan Ki Kau v Hong Kong Police Force [2020] 5 HKLRD 653 (with Mr Ernest CY Ng) – acted for the Applicant in judicial review proceedings concerning the Police’s duty to show unique identification at public order events, and the Government’s duty to put in place an effective system of investigation, under Article 3 of the Hong Kong Bill of Rights

LAA 97/2022 Masih Waseem v Torture Claims Appeal Board (sole advocate) – legal aid appeal for judicial review in a non-refoulement claim, on grounds of error in law in approaching documentary evidence and Country of Origin information