Jonathan is widely regarded as one of the best juniors at the Criminal Bar. He is the “go-to junior” for legally and factually complex cases such as those involving offences of terrorism, homicide, serious organised crime, complex fraud and cyber-crime.
He has been instructed in some of the most high-profile cases in the criminal courts, which include the recent prosecutions of the murder of Sir David Amess MP, John Worboys (‘the black cab rapist), the PC Harper trial and the trial concerning the manslaughter of 39 Vietnamese migrants. He brings to all cases his fierce intellect, unstinting hard work and dedication and an approachable and down-to-earth manner. He is much admired for his excellent and incisive judgment and legal knowledge as well as his ability to communicate complex evidence in a way that is clear and attractive to juries.
Jonathan is ranked in Tier 1 as a leading junior in both Chambers & Partners UK Bar Guide 2023 and the Legal 500.
He is Junior Treasury Counsel, based at the Central Criminal Court having been appointed by the Attorney-General in November 2017.
13 October 2023
Oliver Glasgow KC has this week made the opening statement as counsel to the... Read More
"He's a superstar on the rise." Chambers UK 2024
"He's exceptional in terms of his legal ability and the way he deals with tribunals and co-counsel." Chambers UK 2024
‘Jonathan is at the very top of the profession, an excellent advocate and lawyer. He is a class act: fair, hardworking, and clever. He is in so many ways just an ordinary bloke but he has an extraordinary talent.' Legal 500 2024
"He is outrageously good and instils total confidence from the outset. A hugely impressive professional who is very, very responsive and able to grasp cases immediately." Chambers UK 2023
‘ Jonathan is immensely impressive. He is incredibly clever, extremely hard working, and thinks incredibly quickly on his feet. A lethal cross-examiner. ’ Legal 500 - 2023 [Financial Crime]
'Jonathan's legal knowledge and tactical acumen are second-to-none. He is a formidable advocate both on paper and on his feet.' Legal 500 2023
‘He is highly intelligent; he is prolifically hard-working and has endless stamina and he is a great strategist and his judgment is pretty perfect. He is one of the best junior Treasury Counsel at the Old Bailey. A masterful advocate; he makes winning look easy.’ Legal 500 2021
Has the ability to simplify complex prosecution cases that might be strong evidentially but are on paper difficult to communicate to a jury." "He is good with the jury and is also someone whose judgement you can trust.’ Chambers & Partners 2021
“He has extensive experience of how the criminal justice system operates in practice, particularly in relation to the processes used by law enforcement and the mechanics of the various powers available to law enforcement agencies. He has excellent judgement and is able to offer simple, but highly useful suggestions.” Chambers UK 2020
"There are not enough superlatives to do this gentleman justice; he has a prolific energy that galvanises his cases." Chambers UK 2019
"He instils great confidence in clients." Legal 500 2016
‘A very effective prosecutor, and also a very hardworking defence junior, who gets on very well with clients.’ Legal 500 2017
‘A masterful advocate – eloquent, sharp and irresistibly persuasive.’ Legal 500 2020