“Effective as an advocate and good at explaining ideas to the court.” “He has a real eye for detail, and is incredibly approachable and friendly as well.” (Chambers and Partners 2017)
Appointed Queens’ Counsel in 2014, Jonathan is ranked in Chambers and Partners 2017 in Administrative and Public Law, and POCA Work and Asset Forfeiture. He has a wealth of experience handling unusual, sensitive or controversial matters, especially in the fields of asset recovery, mutual legal assistance, national security, human rights, confiscation, tax and duties, law enforcement, extradition, inquests and immigration, and wherever criminal law interfaces with public law. Before taking Silk, Jonathan was a grade 4 prosecutor.
“Hall is an established player who is well beyond his year of silk in terms of his gravitas and the cases he deals with.” “He’s really clever, he writes well and he’s a great advocate.” “A powerful advocate who can see both sides of an argument and really fine-tune his approach.”Chambers and Partners 2017
In recent years he has acted in high profile cases such as the ongoing Undercover Policing Inquiry, the recovery of assets stolen by General Abacha, the 7/7 Brecon Beacon and Litvinenko Inquests, civil claims arising out of the shooting of Mark Duggan, and damages claims against the intelligence services.
Jonathan is familiar with the demands of large organisations and the strategic implications of litigation and investigations, and is frequently instructed to advise private clients and public bodies on issues of RIPA, cybercrime and data protection, law enforcement, regulatory crime, national security and on novel and difficult issues of fact and law.
- Undercover Policing Inquiry, representing the Metropolitan Police Service before Sir John Mitting, ongoing (https://www.ucpi.org.uk)
- Grecu v Romania (Divisional Court)  EWHC 1427 (Admin) (extradition and prison overcrowding)
- R. (on the application of Unaenergy Group Holding Pte Ltd) v Director of the Serious Fraud Office (Divisional Court)  2 Cr. App. R. 11 (duty of candour in context of mutual legal assistance)
- National Crime Agency v Khan (QBD)  Lloyd’s Rep. F.C. 153 (civil recovery of organised crime property)
- R. v Guraj (Lodvik) (Supreme Court) 1 W.L.R. 22 (postponement of confiscation orders)
- Beghal v United Kingdom (European Court of Human Rights), ongoing
- National Crime Agency v Abacha (Court of Appeal), Times, September 29, 2016,  1 W.L.R. 4375 (disclosure of Letters of Request)
- MP (Sri Lanka) v Secretary of State for the Home Department (Supreme Court)  2 All E.R. 155 (reference by Supreme Court to EJC on immigration/EU issue)
- A v DPP (Court of Appeal Criminal Division),  EWCA Crim 96 (restraint proceedings under POCA against foreign nationals)
- R (on the application of McKenzie) v Director of the Serious Fraud Office (Divisional Court)  1 W.L.R. 1308 (protection of LPP material using information technology)
- B v Chief Constable of Northern Ireland (Divisional Court)  Crim. L.R. 428 (police powers of arrest relating to Bloody Sunday)
- National Crime Agency v Abacha (Administrative Court), 21 January 2015  EWHC 357 (Admin);  Lloyd’s Rep. F.C. 411 (new statutory freezing power to recover assets stolen by former Nigerian dictator)
- Yam v Attorney General (Supreme Court)  A.C. 771 (power to prevent transmission of detail sensitive court proceedings to European Court of Human Rights)
- Sher v United Kingdom (European Court of Human Rights), App.No. 5201/11, 20 October 2015 (Prevention of terrorism; warrants of detention; search warrants).
- Beghal v DPP (Supreme Court)  3 W.L.R. 344 (Investigatory powers; Privilege against self-incrimination; Proportionality; Right to fair trial; Right to liberty and security; Right to respect for private and family life; Terrorism)
- The Brecon Inquests (deaths of 3 reservists from heat illness), June 2015
- Amin v DG of MI5 and others (Court of Appeal)  EWCA Civ 653 (strike out; damages complicity in torture)
- DD v Secretary of State for Home Department (Administrative Court)  EWHC 1681 (Admin) (terror suspect/ Art 3)
- TN and MA v Secretary of State for Home Department (Supreme Court)  1 WLR 3083 (asylum claims by Afghan children)
- National Iranian Tanker Co v Foreign Secretary (QBD)  EWHC 282 (QBD) (injunction in EU sanctions case)
- Magee and Others v the United Kingdom (European Court of Human Rights), judgment 12 May 2015 (2016) 62 E.H.R.R. 10
- Armstrong v the United Kingdom (European Court of Human Rights), judgment 9 December 2014 (2003) 36 E.H.R.R. 30
- Queen’s Counsel (2014)
- Recorder of the Crown Court
University of Oxford, BA (Hons), English Language and Literature
- French (Advanced)