William Hansen

William Hansen

Call 1992


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Public Law & Regulatory

William is a member of the Attorney-General’s B Panel of Counsel to the Crown in civil matters and acts for a variety of government agencies, including the Secretary of State for the Home Department, the MoJ, the Department of Health, the Secretary of State for Business and HMRC.

As such he is a specialist in public law and judicial review and regularly appears in the Administrative Court acting for the Crown, particularly in the field of immigration, where he has a particular interest in Article 8 ECHR, Dublin Regulation claims, asylum, human trafficking and unlawful detention.

His expertise extends to any case involving a challenge to the legality of a decision taken by a public body and he has particular expertise in all aspects of human rights.

He has a particular expertise in civil VAT fraud, civil recovery of the proceeds of crime and all aspects of asset recovery (including confiscation, forfeiture, freezing orders, beneficial interests).

William has wide experience of disciplinary proceedings against professionals and has appeared before the SDT, NMC and RICS.

William also sits as a Legally Qualified Chair for Police misconduct hearings and as a fee-paid Judge of the First Tier Tribunal.

Notable Cases

Minshall v Revenue and Customs Commissioners and others [2015] EWCA Civ 741 (res judicata and Article 6 ECHR);

R (on the application of Williams by his father and litigation friend Richard Williams) v Secretary of State for the Home Department [2015] EWHC 1268 (Admin) (vires challenge to Regulations and challenge under Articles 8 and 14 ECHR);

R (on the application of Poquiz) v Secretary of State for the Home Department [2015] EWHC 1759 (Admin) (human trafficking);

R (on the application of Stewart) v Secretary of State for the Home Department [2015] EWHC 806 (Admin) (Zambrano and Article 8 ECHR);

R (on the application of Kucherov) v Secretary of State for the Home Department [2014] EWHC 3749 (Admin) (construction of Immigration Rules and legitimate expectation);

R (oao Butt) v. SSHD [2013] EWHC 1793 (Admin) (dishonesty and false documents);

R (oao Chanthiratheva) v. SSHD [2013] EWHC 2135 (Admin) (no unfairness in treatment as between personal and postal applicants);

Bent v. SSHD [2012] EWHC 4036 (Admin) (derivative rights of residence);

Azaroal v. SSHD [2013] EWHC 1248 (Admin) (unlawful detention);

SB (Pakistan) v. SSHD [2013] EWCA Civ 506 (appeal rendered academic).

Academic Qualifications

  • B.Sc (Econ), First Class, LSE
  • M.Phil (Cantab.)
  • MBA (London Business School) with Distinction

Professional Bodies

  • ADR Qualified Mediator
  • Member of the Administrative Law Bar Association
  • Member of the Chancery Bar Association
  • Member of the Property Bar Association