Brian O'Neill QC

Brian O’Neill QC

"His calm and confident manner means he is in great demand."

Legal 500 2017
Year of call: 1987 QC: 2010
For enquiries please call: 020 7353 5324 or email vcard cv linkedin save

Criminal Prosecution - Public

Brian is an experienced prosecutor who is frequently instructed to prosecute in cases of complexity, sensitivity and seriousness. Apart from his work for the Specialist Fraud Division (see Business Crime and Financial Services), Brian is regularly instructed by specialist units within the CPS, including the Organised Crime Division, CPS London’s Homicide Team and CPS London’s Special Casework Unit.

His significant experience includes the complex multi-handed prosecutions of organised gangs of criminals and “career criminals”. Such cases require careful attention to case strategy, an ability to analyse and present a range of complex evidential material, and the sure handling of often highly sensitive unused material.

He has extensive experience of prosecuting murders at the Old Bailey including multi-handed gang related cases and cases giving rise to mental health issues.

Outside of this jurisdiction he has recently advised the DPP of The Isle of Man in respect of a high profile murder case on the island.


Richard Huckle

H, widely described in the media as ‘Britain’s worst ever paedophile’, was convicted of 71 counts of child abuse committed against 23 young children over a period of 8 – 9 years when he was living in Malaysia. The case gave rise to numerous issues including extra territorial jurisdiction, the use of ‘the dark web’ and the presentation to a jury of graphic images recorded by H of him raping his victims.

Michael Meanza

M, who had been the subject of a MHA order for many years, was convicted of the murder of a care worker at the ‘halfway house’ to which he had been recently released.

Tamale and others

Three defendants, including two twin brothers, were convicted of the murder (2) and manslaughter (1) of a young man who tried to prevent them from robbing a group of other youths at an 18th birthday party.

Trevor Gibbon

G was convicted of the murder of his next door neighbour following a protracted neighbour dispute between the respective occupants.

Safdar & Subhani

The defendants were accused of endangering the safety of a PIA aircraft by making threats to kill members of the crew and blow up the plane on its approach to Manchester airport. RAF fighter jets were scrambled and the plane was diverted to Stansted airport, the incident being treated as terror related.

Johnson & Others

The defendants, of whom there were 30, were members of organised criminal networks which carried out more than 30 robberies of ‘high end’ jewellers’ stores throughout the country and overseas stealing £millions worth of watches and other items. This was one of the largest prosecutions ever brought by the Flying Squad. Brian was subsequently named ‘Times’ Lawyer of the Week’ in recognition of his leadership of the prosecution team.

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