Brian O'Neill QC

Brian O’Neill QC

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

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

Private Prosecution

Brian’s expertise in criminal law and his very considerable experience prosecuting serious and complex criminal cases have led to a number of instructions in this area in which he both prosecutes and defends and also lectures.



Appearance: Defence

Representing SG, an Austrian businessman accused by MT (another Austrian businessman) of a mezzanine finance fraud. The proceedings, which are at an early stage, are currently the subject of an application to stay before the issuing magistrates’ Court and a request to the CPS to intervene and discontinue.

Euro Exim Bank Ltd v Wahab

Appearance: Prosecution

A private prosecution brought by a private bank against a former customer in respect of his attempts to defraud the bank of E50 million. The matter is due for trial in 2019.

G and T v L

Appearance: Defence

L was accused of numerous counts of fraud relating to the provision of gas and electrical safety certificates in a private prosecution brought against him by G and T following a long running contractual dispute between their companies. Successful representations to the CPS resulted in half the charges being taken over and discontinued. The subsequent trial resulted in a hung jury. Thereafter, following further submissions the prosecutors offered no evidence.


Appearance: Defence

The defendants, two senior professionals in the financial services industry were accused of fraud by the daughter of one of their clients following a long running family dispute. The matter was prosecuted privately and was the subject of successful representations to the CPS to take over the case and discontinue the proceedings. Thereafter the defendants successfully recovered all of their costs against the private prosecutor following a fully contested hearing.


Appearance: Prosecution

Advising a company on the merits of a private prosecution in respect of allegations of fraud by a former employee and his wife following a series of civil suits.

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