Jollyon Robertson


Jollyon Robertson is an experienced Leading Junior, appearing on a regular basis in serious criminal cases, including multi-handed cases.

Background and Expertise

Jollyon both Prosecutes and Defends. He has substantial experience at the criminal bar, with over 30 years’ experience in trials in Crown courts across the country, both as a Leading Junior (for 20 years) and as Junior alone.

His cases have included murder, large-scale importation of drugs, kidnapping, false imprisonment, blackmail, recent and historic rape, fraud, money laundering, corruption and armed robbery.

He is highly regarded for his thorough preparation, for his tactical appreciation of case, and for his advocacy skills in court. He is experienced in handling cases which involve vulnerable and young defendants and witnesses.

Jollyon is a Grade 3 prosecutor and on the CPS rape list. He is also a Registered Pupil Supervisor.

In addition to regularly appearing in the Crown Court he has appeared in the Court of Appeal on many occasions. He regularly defends in the Court Martial in the UK (and abroad).

Jollyon recently drafted an article ""Dishonesty" A new test", regarding the Barton and Booth judgment, with Matthew Simpson.

Notable cases

R v M,A,H and K 2021 - 2022

Successful prosecution of four defendants in a 'Crash for Cash' case, In which the defendants had organised an accident on a motorway, involving an unsuspecting 'victim'. The defendants then made a number of high value claims on insurance. - Inner London Crown Court

R v N 2022

Successful defence of a historic rape allegation. - Luton Crown Court

R v A 2021 & 2022

Successful prosecution of a number of separate cases involving the street supply of class 'A Drugs' in Central London. All cases arising out of an ongoing Police operation (Including the deployment of undercover officers)

R v O 2022

Successful prosecution of historic rape allegations. 22 counts of rape allegations against stepfather ages from 6 to 12 years old.

R v M 2022

Successful prosecution of historic rape allegations from older brother (Defendant is now ages 24 - events happened approx. 8 years ago.)

R v H 2022

Successful defence of 40 year old allegation by the female defendant on her younger sister. - St Albans Crown Court

R v D, 2021

Successful defence of an allegation of Attempted Murder.  The allegation involved a knife attack in the hours of darkness on the streets.  Defendant acquitted. Woolwich Crown Court.

R v B, 2021

Successful defence of an allegation of Attempted Murder. Truro Crown Court.

R v X, 2021

Successful prosecution in relation to an extreme offence of Dangerous Driving and Possessing Drugs with Intent to Supply. St Albans Crown Court.

R v K, 2020

Successful prosecution of Conspiracy to Defraud a bank, and Securing Unauthorised Access to Computer Material with Intent. Inner London Crown Court.

R v T and D, 2020

Successful prosecution of two young persons who were involved in a serious attack on an older victim and who sustained life changing injuries. Two week trial. The defendants in the case were said to have videoed the attack, and to have streamed it live to a friend. Inner London Crown Court.

R v D and others (6 Defendants), 2019

Successful prosecution of the Kidnapping and False Imprisonment of a 14 year old school boy. Croydon Crown Court.

R v M, 2019

Successful defence of a soldier accused of indecent behaviour towards a 12 year old boy. Young and vulnerable witnesses involved. Court Martial.

R v J, 2017

Successful prosecution, after four-week trial, of Chief Financial Officer of public company charged with theft of £1m over two years, in breach of trust. Harrow Crown Court.

R v V, 2016
Defending in £1m “boiler room fraud” case. Legal arguments on prosecution failure to disclose: the direct result was that the prosecution offered no evidence and the case collapsed. Harrow Crown Court.
R v C, 2015
Defending a historic sex case: a 67-year-old man was charged with alleged rape on numerous occasions of 7-year-old nephew, 42 years ago. After a long trial the defendant was acquitted. Inner London Crown Court.

Read more Notable cases

Homicide and violence cases

R v S, 2021

Three week case involving 3 defendants and an allegation of a machete attack in which the victim’s arm was all but completely severed.  The arrest was for attempted murder, in the end the indictment alleged section 18 wounding with intent. Luton Crown Court.

R v H, 2020

At a Court Martial trial in Bulford it was alleged that a soldier had made serious threats to other soldiers.  It was said that he had threatened to shoot them with a rifle.  He was also said to have threatened them with a meat cleaver.  The soldier was acquitted of any offence and he was able to return to his unit.

R v G, 2018

Successful prosecution of an Armed Robbery. The evidence involved comprehensive telephone and cell site schedules. Woolwich Crown Court.

R v M, 2018

Successful prosecution of Controlling or Coercive Behaviour and Assault. Canterbury Crown Court.

R v M, 2017

Prosecuting. Defendant determined by psychiatrists unfit to plead or stand trial, over charges of malicious communications (“revenge porn”), stalking, threats to kill and racially aggravated harassment. Difficult “trial of issue” took 10 days and involved substantial issues of fact and law, as well as mental health issues. Harrow Crown Court.

R v A, 2016
Defendant acquitted (no case to answer) after successful challenge of DNA evidence in case of possession of a sawn-off shotgun. Co-defendant received 7 years. Isleworth Crown Court.
R v B and 12 others, 2016
Leading junior (for the prosecution) in two long trials involving football violence. Blackfriars Crown Court.

Read more Homicide and violence cases

Sexual offences cases

R v A, 2021

Represented defendant charged with making threats to kill, assault by penetration and controlling and coercive behaviour. Kingston Crown Court.

R v E, 2021

Represented defendant. Allegation of sexual assault by a stranger on the victim during the early hours of darkness and on the streets. Portsmouth Crown Court.

R v H, 2021

Successful defence in a case involving an allegation of Sexual Assault against a soldier who was alleged to have sexually assaulted another soldier’s wife. Court Martial.

R v B, 2015
Successfully defended a 35-year-old man against rape allegations made by two separate complainants who had never met. Substantial character evidence called in support of the defendant’s case. Southampton Crown Court.
R v S, 2013
Successfully defended a young man against an allegation of rape. Autistic complainant. Psychiatric evidence at trial. Intermediary used. Disclosure issues raised by defence in relation to computer records and Facebook accounts of the complainant. Commended on cross-examination. Croydon Crown Court.

Read more Sexual offences cases

Financial crime cases

R v G, 2021

Confiscation proceedings initially in the sum of half a million pounds, but the total was successfully negotiated down to considerably less than half. Manchester Crown Court.

R v M, 2019

Counsel for the prosecution in a multi-handed conspiracy to steal high value motorcars. The case involved expert evidence in relation to the electronic ‘relay’ systems used in such thefts, as well as cell site and other telephone evidence. The defendants were convicted.

R v S, 2018

Counsel for the prosecution in relation to theft of a large sum of money from an ex-police officer. Both defendants were convicted, since when further similar thefts have been investigated which the main defendant has accepted.

R v G, 2018

Counsel for the prosecution in relation to a bank robbery by 3 males. Two were not arrested. The third was convicted after a 7 day trial. The evidence involved comprehensive events/telephone schedules which were used to demonstrate the movements of each of the robbers before during and after the robbery.

R v E, 2015
Successfully defended a young lady against potentially life-changing allegations of money laundering. Defendant of good character, acquitted after a two-week trial. Inner London Crown Court.
R v B
Defending (led by QC) in alleged conspiracy to defraud. Major high-profile “horse-doping” trial; appeared for first defendant in a five-defendant trial. Successful exclusion of part of the evidence at the outset of the trial; case collapsed (no case to answer). Southwark Crown Court.

Read more Financial crime cases

Drugs cases

R v S, ongoing

Leading Junior for defence in confiscation proceedings where there are said to be substantial hidden assets abroad in a 7 figure sum – arising out of the supply of drugs and controlling prostitution for gain. Harrow Crown Court.

R v A and others, 2020

Successful prosecution of a number of cases involving Supply of Class A drugs in the West End of London.

R v S, 2018

Successfully defended a man in his early 50s on allegations of conspiracy to import Class ‘A’ drugs from the West Indies. The prosecution sought to introduce bad character evidence from the USA. They also adduced comprehensive telephone schedule evidence all of which was undermined in cross-examination at trial.

R v Mc, 2012
Defending. Defendant acquitted of alleged importation of 3 million ecstasy tablets; released within a short time after a lesser charge of conviction of duty on a substantial quantity of tobacco. Canterbury Crown Court.
R v J, 2010

Leading junior in trial of importation of heroin by low-flying light aircraft under cover of fog. Large bags airdropped in remote location. Advised on experts for defendant in fields of ballistics, aeronautics, radar and satellite/telephones. Canterbury Crown Court.

Read more Drugs cases

Other Activities and Interests

  • Ocean racing
  • Hockey
  • Cricket
  • Member of the Honourable Artillery Company
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PROFILE: Jollyon Robertson

Year called




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Confiscation / POCA

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Financial Crime

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Fraud, Bribery & Corruption

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Serious Crime

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Sexual offences


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Regulatory / Disciplinary


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Road Traffic

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Road traffic

Direct access



020 7489 2727


BA (Hons) Law, 1979


Middle Temple

Western Circuit

Criminal Bar Association


CPS Panel (Grade 3)


Pupil supervisor

Advocacy trainer

European Human Rights Conference facilitator

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