Due to the sensitive and highly confidential nature of the work, it is not possible to identify many of the notable tax fraud cases in which Jonathan has been instructed to advise. Resolution of tax cases is often achieved without recourse to the tax tribunals or the Courts.

Recent tax cases in the public domain in which Jonathan has been involved include the Britannia Building Society investigation, an HMRC investigation into tax film schemes and the application of the Liechtenstein disclosure facility.

In the courts, he has been involved in the following recent tax cases -

• Operation Euripus, ([2010] EWCA Crim 658, £250 million VAT fraud)
• ARA v Szepietowski ([2008] Lloyd's Rep FC 10, civil recovery alleged tax evasion and mortgage fraud, £30 million)
• Hill & ors (2009, IR 35 and corporation tax alleged fraud)
• Re Financial Investment Advisers (2009, PACE production order)
• Re B (2007] EWHC 3268 Admin, tax fraud, restraint proceedings)
• Stannard ([2005] EWCA Crim 2717, Court of Appeal, tax fraud, confiscation)
• Re Elite Mobiles (2005, VAT carousel fraud)

During his period as Standing Counsel (Criminal) to the Inland Revenue at the Central Criminal Court and London Crown Courts between 1991 and 2003, Jonathan was instructed in the following notable tax cases -

• Dimsey & Allen ([2002] 1 AC 509, House of Lords, offshore companies, control and management tax fraud)
• R v Criminal Cases Review Commission ex parte Hunt , [2001] 2 WLR 319)
• Webb & Simpson (2000, Snaresbrook Crown Court, offshore companies, control and management tax fraud)
• Ex parte Popely ([2000] 4 All ER 763, [1999] STC 1016, High Court, VAT fraud, legal professional privilege issues)
• IRC ex parte Dhesi ([1995] 67 TC 580, revenue fraud, voluntary bill)
• R v Hunt (Nissan UK) [1994] STC 819
• Scannell, Cook and Mead ([1993] 1 All ER 772, High Court, offshore companies, accountant & taxpayers)