Mark Heywood KC

Practice Profile

Mark Heywood KC has been ranked as a 'Star Individual' in the Chambers UK Guide to the Bar since 2013 and is a recognised leader at the Bar. He was awarded the Chambers UK Bar Crime Silk of the Year award 2018.

Mark Heywood KC is a former First Senior Treasury Counsel at the Central Criminal Court having held that post between 2015 & 2018. His practice is concentrated on the most serious of criminal work that comes before our Courts, at the Central Criminal Court, Administrative Court, Court of Appeal and Supreme Court. He has appeared in the High Court in civil contempt proceedings, most recently for a claimant Hong Kong Bank where the defendant was sentenced to 18 months and ordered to pay indemnity costs.

Since his role of Senior Treasury Counsel, Mark Heywood KC has primarily been involved in cases of alleged financial misconduct. He led the prosecution team for the SFO in Op Glacier, the prosecution of a former Airbus subsidiary that was ordered to pay more than 30 million pounds ($42 million) after pleading guilty to corruption over contracts to provide military communications services for the Saudi Arabian National Guard. He has provided pre-charge representations to a client that the SFO suspected had conspired to make corrupt payments contrary to s.1 of the Prevention of Corruption Act 1906 and s.1 of the Criminal Law Act 1977, and was interviewed about his actions in particular, the SFO suspects was involved in actions leading to agreements to make corrupt payments to Nigerian and Malaysian Government Officials, which was discontinued. Further successful pre-charge work includes advice given to an SFO suspect in relation to bribery and corruption involving Petrobas, the value of the contract was said could easily be up to $2 billion. Trial work has including Op Cullinan, a multi-company boiler room fraud involving the sale of diamonds that was dismissed at half time and Op Balaban, a £7m carbon credit fraud that was again dismissed at the close of the crown case.

Mr Heywood has considerable experience in cases of terrorism, large scale corruption, serious & organised crime and offences of homicide. He regularly provides advice to the Attorney General and Director of Public Prosecutions on a range of matters, particularly those being considered by the appellate courts as well as other governmental departments. Other work includes advising upon matters concerning gross negligence manslaughter involving the medical profession and litigation involving the SFO and FSA. He also advises in matters where a private prosecution is sought. 

Cases have included the serial killer Levi Bellfield, Operation Crevice the longest running Old Bailey trial better known as the Fertiliser Bomb plot, Nicola Edginton the mental health patient convicted for the killing of an innocent bystander and the attempted murder of two others in Bexleyheath after a cry for help, the Supreme Court hearing of Gnango [2011 UKSC 59] on transferred malice/joint enterprise, Arthur Simpson-Kent who was sentenced to life for the murder of Eastenders actress Sian Blake and their two children. Recent defence work has included a murder trial in the Cayman Islands (R v.Sanchez).

Mark's Privacy Policy can be downloaded here.

Appointments

• 2001 - 2008 - Junior Treasury Counsel
• 2005 - Recorder
• 2007 - 2008  First Junior Treasury Counsel
• 2008 - Senior Treasury Counsel
• 2010 - Queen's Counsel
• 2015 - 2018 - First Senior Treasury Counsel

Memberships

• South Eastern Circuit
• Criminal Bar Association

News

• Operation Rayak 2022

  Swedish Gangland Assasination

  Mark Heywood KC led for the Crown in this case involving a Swedish Gangland assassination of a member of a leading figure in Swedish organised crime by a rival group who carried out the shooting by firing 10 shots at point blank range in London in front of the victim’s wife and 2 year old child. This was a carefully planned operation involving protracted surveillance of the victim, disguises, the procurement of semi automatic weapons and ammunition and a clean up operation after the event. 

  News Article.

   

• Operation Kandla 2022

  Health & Safety Prosecution under the Medicines Act 1968

  Mark Heywood KC led William Davis in the prosecution of a company that manufactures total parenteral nutrition, which is supplied to vulnerable patients receiving nutrition intravenously. In 2014 a contaminated batch was supplied to hospitals treating severely premature babies. 19 babies developed infections as a result, and one died. After protracted and contentious litigation, the defendant company pleaded guilty to a health and safety offence and to offences under the Medicines Act 1968. The company was sentenced in April 2022.

  BBC News Article.

• R v. Finch - C.C.C. 2021

  Official Secrets Act

  Matk Heywood KC led the Prosecution and subsequent reference of sentence to Court of Appeal of defence contractor employed by BAe Systems who compiled records of highly secret operational information relating to a missile system currently in service with the UK armed forces and abroad and then travelled to Europe to send copies by email to multiple recipients.  Extremely unusual conviction for an offence under section 1 of the Official Secrets Act 1911.

  News Article.

• Appeal of DS 2016

  Gross Negligence Medical Manslaughter

  Mark Heywood QC leading Ben Temple, acted in the appeal by a doctor convicted of Gross Negligence Medical Manslaughter following the death of a patient after falling unexpectedly ill following knee surgery.

• R v. Dwayne Henry [Blackfriars] 2015

  Double-jeopardy prosecution of serial rapist

  Mark Heywood QC leading Jonathan Polnay prosecuted this Defendant, who described himself as the ‘Hackney Ripper’, who stood trial and was convicted of a series of rapes of prostitutes, receiving a sentence of life imprisonment. The Defendant had previously been acquitted of rape. A successful application was made to quash the acquittal under the double-jeopardy provisions of the Criminal Justice Act 2003, and join the re-trial to the new proceedings.

  Daily Mail report here.

• Operation Lenwade [C.C.C.] 2016

  7-handed gang murder

  Mark Heywood QC and Jonathan Polnay prosecuted this 7-handed gang-murder trial at the Central Criminal Court arising out of a feud between two notorious Hackney gangs. Following the convictions, YouTube was put under significant pressure to remove videos that glorifed the gangs' activities.

  Daily Mail report here.

Notable Cases

• Operation Dowl [C.C.C.] 2018

  Suicide Terror Plot to Kill the Prime Minister

  Mark Heywood QC represented the Crown in this case involving the plot by two individuals to kill the Prime Minister. The plan was to detonate a bomb at the gates of Downing Street and then kill Theresa May with a knife or gun. 

  BBC report here.

• R v. Theodore Johnson [C.C.C] 2018

  Prosecution of man for third offence of homicide of his partners

  Mark Heywood QC and Jonathan Polnay acted for the Crown in the case of Theodore Johnson whom was sentenced to life with a minimum tariff of 26 years, increased on appeal against Unduly Lenient Sentence, to 30 years in March 2018. Johnson had been convicted previously for the manslaughters of his partners in 1981 and 1993. His third victim, Angela Best, was murdered with a claw hammer in her flat in North London in December 2016. 

  BBC report here.

• R v. Abdallah [C.C.C.] 2017

  Prosecution of British man who travelled to Syria to join so-called Islamic State

  Mark Heywood QC acted for the Crown in this prosecution of a British man who was jailed for possession of an AK47 gun, receiving £2000 for the purposes of terrorism and membership of ISIS.

  BBC report here

  Guardian report here.

• R v. Simpson-Kent [C.C.C.] 2016

  Murder of Eastenders actress and 2 children by partner

  Mark Heywood QC prosecuted the case involving the horrific killings of the Eastenders actress Sian Blake and her two children, whom were murdered by the partner and father Arthur Simpson-Kent. The defendant was sentenced to a whole life tariff.

  BBC News report here.

• R v. Armel Gnango [Supreme Court] 2011 UKSC 59 2011

  Appeal re: joint enterprise / transferred malice

  Mark Heywood QC along with Brian Altman QC represented the Crown before the Supreme Court on this leading authority regarding joint enterprise / transferred malice. The Supreme Court held, restoring Gnango's conviction for the murder of Magda Pniewska, that he was guilty of murder notwithstanding the fact that he had not fired the shot which killed Pniewska during the shoot out which led to her death, and that the fatal shot had been fired by his opponent in an attempt to kill him.

• R. v. G; R. v. J [2009] UKHL 13; Archbold 2013: 25-67 2009

  Use of Articles for purposes of Terrorism

  Mark Heywood QC leading Ben Temple for the Prosecution at first instance, the Court of Appeal and the House of Lords where David Perry QC was also instructed.

  J was found to be in possession of an extensive library of religious, political, ideological, military and extreme Islamist material some of which had an express terrorist purpose, digitally stored on his laptop, I-Pod, telephone and numerous digital disks comprising several hundred hours of audio and video material and several thousand pages of documentation.   J was charged with possessing articles for a purpose connected with terrorism, contrary to section 57(1) of the Terrorism Act 2000.  J pleaded guilty to four counts contrary to section 58 of the Act.  The Court of Appeal then handed down judgment in R. v. K [2008] EWCA Crim.185 on the point of reasonable excuse under section 58(3).  J, having applied successfully to vacate his pleas, claiming erroneous legal advice in the light of R. v. K, re-entered not guilty pleas at a preparatory hearing in the course of which the Recorder of Birmingham, regarding himself bound by R. v. K, ruled on a question of law formulated by the Crown that, by reference to R. v. K, under section 58 where a reasonable excuse is raised the prosecution must prove a terrorist purpose.

  Leave to appeal to the House of Lords was granted.  The three certified questions raised substantial, complex issues.  The concept of reasonable excuse had to be considered across numerous statutory contexts.  The Crown’s appeals (G and J) were allowed and J, a year after he had first done so, pleaded guilty to four offences contrary to section 58.

• R v. Levi BELLFIELD [C.C.C.] 2008

  Prosecution of Serial Killer

  Mark Heywood QC together with the then First Senior Treasury Counsel, acted for the Crown in this prosecution of the notorious Serial Killer Levi Bellfield for the murders of the 22 year old French Student Amelie Delagrange and the 19 year old woman Marsha McDonnell as well as the attempted murder of Kate Sheedy. In 2011 Bellfield was convicted of the murder of Milly Dowler and sentenced to a whole life tariff. 

  Wikipedia entry here.

• Operation Seagram [Woolwich] 2008

  Planned Car Bomb attacks

  Mark Heywood QC along with Jonathan Laidlaw QC conducted the prosecution of 2 NHS Doctors for conspiracy to murder by planning car bomb attacks in 2007 at London's West End Tiger Tiger Nightclub and at the Glasgow International Airport.

  BBC news report here.

• Operation Crevice [C.C.C.] 2007

  'Fertiliser' Bomb Plot

  Mark Heywood QC along with David Walters QC and Duncan Atkinson prosecuted the longest running Old Bailey trial which concerned the "Fertiliser Bomb Plot" and conspiracies to cause explosions throughout the U.K.

  BBC news report here