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Sean Sullivan

Year of call: 2004

Sean is an experienced, calm and focused barrister who both prosecutes and defends allegations of serious crime. He prepares his cases with great care, gives insightful advice and is a convincing jury advocate.

Sean regularly handles allegations of murder, rape, serious organised crime (including drugs and firearms) and financial crime.

He is a grade 4 prosecutor (including RASSO).

Homicide

 

R v B [2024]: defence of a man charged with murder after a drug related shooting.

 

R v G [2023]: defence of a man with serious mental health issues accused of murder.

 

Sexual offences

 

R v M [2024]: defence of a 17 year old accused of gang rape, false imprisonment and a firearms offence. Sean’s submission of no case to answer, based solely upon the credibility of the complainant after his cross-examination of her, was allowed resulting in not guilty verdicts being entered in relation to all three defendants.

 

R v M [2023]: successful prosecution of a double rapist.

 

Serious organised crime

 

R v K and others [2024]: Prosecuting over twenty defendants alleged to be part of an organised crime group involved in the supply of drugs, possession of firearms and an attack on the police in an attempt to retrieve seized drugs and firearms.

 

R v H [2023]: H was accused of being the equal partner of the ringleader of a conspiracy to import cocaine into the United Kingdom. The drugs weighed over 1.5 tonnes and had a street value of more than £100 million. The prosecution’s case relied upon close personal and professional links to the ringleader, telephone communication and covert recordings. Sean attacked and undermined each aspect of the prosecution’s case arguing that their interpretation of the evidence was simply incorrect. The defendant was found not guilty on all counts.

 

Appeals

 

R v N [2023]: Sean was successful in having a conviction for grievous bodily harm with intent quashed by the Court of Appeal. Sean was not involved in the original trial, but on reviewing the case advanced an appeal based upon disclosure failings by the police and prosecution counsel and errors made by the trial judge. The appellant was released from serving a custodial sentence.

 

Legal directories

 

“Sean is a brilliant tactician and a skilful advocate.” Chambers UK 2024.

 

“Sean will turn his hand to any problem and find a solution. He remains a passionate advocate with a razor-sharp wit and intelligence that results in being highly persuasive in any legal setting”. Legal 500 2024.

Appointments

CPS panel (grade 4)

CPS Rape and Serious Sexual Offences panel

Serious Fraud Office (Panel A)

 

Education

BA Jurisprudence, St. Edmund Hall, University of Oxford.

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