“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 Christopher Pitchford, ongoing (https://www.ucpi.org.uk)
- National Crime Agency v Abacha Court of Appeal (Civil Division), Times, September 29, 2016 (disclosure of Letters of Request)
- MP (Sri Lanka) v Secretary of State for the Home Department  UKSC 32 (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  1 W.L.R. 1308 (protection of LPP material using information technology)
- B v Chief Constable of Northern Ireland  Crim. L.R. 428 (police powers of arrest relating to Bloody Sunday)
- National Crime Agency v Abacha, Queen’s Bench Division (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, App.No. 5201/11, 20 October 2015 (Prevention of terrorism; warrants of detention; search warrants).
- Beghal v DPP, Supreme Court, 22 July 2015  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  EWCA Civ 653 (strike out; damages complicity in torture)
- DD v Secretary of State for Home Department  EWHC 1681 (Admin) (terror suspect/ Art 3)
- TN and MA v Secretary of State for Home Department  1 WLR 3083 (Supreme Court, asylum claims by Afghan children)
- National Iranian Tanker Co v Foreign Secretary  EWHC 282 (Admin) (injunction in EU sanctions case)
- Magee and Others v the United Kingdom, European Court of Human Rights, judgment 12 May 2015
- Armstrong v the United Kingdom, European Court of Human Rights, judgment 9 December 2014
- NCA v Surin: Civil recovery claim against notorious criminal.
- Martin-Artajo v FCA:Representing former banker in claim arising out of the ‘London Whale’ JP Morgan trades.
- Duggan v Metropolitan Police: Acting for Met Police in civil claims arising from shooting of Mark Duggan.
- Queen’s Counsel (2014)
- Recorder of the Crown Court
University of Oxford, BA (Hons), English Language and Literature
- French (Advanced)