Jon is widely regarded as one of the pre-eminent advocates in the field of EU/Competition law. He stands at the pinnacle of the legal directories’ rankings for EU/Competition law, and has been ranked as the Chambers and Partners “Star Performer” repeatedly. Before taking silk, Jon was the Standing Counsel to the Office of Fair Trading for nine years, and honed his trial strategy and cross-examination skills in a number of the OFT’s heaviest court cases (including the replica football shirts cartel case in the Competition Appeal Tribunal, and the Over-The-Counter Medicaments trial in the Restrictive Practices Court). He was praised for his “encyclopaedic knowledge of the law and unparalleled trial skills.”

Jon’s practice in silk has involved handling many of the largest and most high-profile cases in the Courts. In 2020, this included two (successful) cases in the UK Supreme Court, namely the Visa/Mastercard interchange fee appeals (on behalf of a group of national retailers); and the Servier appeal on the EU law principle of res judicata. He also was lead advocate for National Grid in the damages litigation concerning a worldwide cartel in Power Cables (settled in November 2020, on the eve of a three-month trial), and prior to that he led the case for National Grid in the damages litigation for an international cartel in Gas Insulated Switchgear. He has acted on the defence side for Bank of Tokyo in the FX market-rigging damages litigation, and was lead counsel for the main defendant, British Airways, in the long-running Air Cargo cartel litigation in the High Court and Court of Appeal.

In 2021, he has acted for Whistl in the leading abuse of dominance regulatory trial in Royal Mail v. Ofcom and Whistl concerning the role of the “as efficient competitor” test (judgment was handed down by the Court of Appeal in May 2021, after a full witness trial in 2019); and he is acting on behalf of the consumer group Which? in the multi-million pound collective claim for abuse of dominance against Qualcomm Inc. in the Competition Appeal Tribunal. He is also instructed by Apple in its FRAND litigation against Optis (Unwired Planet).

In prior years he has acted for Google in its celebrated victory in the abuse of dominance litigation brought against it by Streetmap in the High Court (2016, following a full witness trial), and he is currently acting for Google in the damages litigation brought against it by the comparison shopping business Foundem.

He has acted in a series of the major Court of Appeal cases in the fields of competition law, including Samsung v. Unwired Planet (2016); National Grid (French Blocking Statute) (2013); Deutsche Bahn (also in the Supreme Court) (2012). He has regularly argued cases before the European Courts at both the General Court and Court of Justice levels, including for American Express in two related challenges to EU legislation on payment systems regulations.

Cases

Jon is one of the elite advocates in telecommunications/regulatory law, combining top flight advocacy and analytical skills with excellent strategy and team work. He is ranked in the first band by Chambers UK, which describes him as “roundly regarded as one of the best competition and regulated utilities counsel in the land.” Solicitors like him as “he shows you the light in a case and directs you down the path that is best for you.” He also “adds an aura of calm and control to any situation,” which proves highly reassuring to those who instruct him“.

He acts for companies at every level, including in the Competition Commission, the Competition Appeal Tribunal, the Administrative Court (in judicial reviews), and the Court of Appeal. In 2012/13 he acted for Everything Everywhere in their challenge to termination rate controls imposed by Ofcom. In 2012, he secured a landmark victory in the Court of Appeal on a joint instruction by Everything Everywhere, Three and Vodafone against a CAT decision concerning Ofcom’s remit in deciding interconnection disputes among telecoms operators. In 2010, he acted for Carphone Warehouse in one of the largest pieces of telecommunications litigation that year, concerning price controls over the charges for BT’s copper wire telephone and broadband products. In 2008-10 he acted in the first wave of challenges to Ofcom’s mobile price controls, involving expert cross-examination in the Tribunal, ending with a key victory in the Court of Appeal on the powers of the CAT when overturning regulatory price controls. In 2013, Jon also represented the water regulator, Ofwat, in the Administrative Court judicial review attack on a “bulk supply” determination in favour of Albion Water.

“He’s quite fearless in that he will take difficult points on, and he enjoys the thrill of trying to get judges to change their minds on something difficult.” “Jon is brilliant: he’s incredibly clever and a great advocate.” – Chambers UK

“He probably could quite literally argue that black is white.” – Legal 500

Jon is one of the Bar’s foremost litigators in EU law, handling cases in the European Courts and in the UK. As junior Treasury Counsel, he handled cases in areas as diverse as environmental law and criminal justice in the Court of Justice. His landmark victories included Novartis (an intellectual property case concerning the validity of supplemental protection certificates in the pharma industry), and Roquette Freres (concerning the powers of the European Commission in their “search and seizure” activities in dawn raids. In silk, he has acted in a wide variety of cases, including the recent attack on the EU’s Carbon Trading Scheme in the aviation sector (2011), where he successfully resisted the challenge by US airlines based on public international law norms to the legality of the environmental measure, and where another party described his performance as “spectacular“. He was nominated for the Bar Pro Bono award of the year in view of his outstanding work in the case. He also acted for the United Kingdom in the EU General Court (2012) and Court of Justice (2013) in the appeal mounted by MasterCard to the European Commission’s decision that its cross-border payment card system had anti-competitive elements (the “interchange fee”). In 2007, Jon was instrumental in the defence of another EU-wide law, the “Roaming Regulation” in the telecommunications field, against an attack on its validity by a coalition of telecommunications companies.

Cases

“Jon is highly regarded and has a keen insight into the client’s commercial objectives.” – Chambers UK

“Very smart on EU special protection certificates.” – Chambers UK

Jon Turner KC is recommended in Chambers & Partners for his excellent practice in judicial review and public law, where he focuses on three main areas: commercial and regulatory judicial reviews; environmental law, and more generally in cases raising EU law issues. Legal 500 reported under Public & Administrative Law that he is widely seen as “a man of fabulous intellect, who always offers great support to those that instruct him“.

He acts for companies and public bodies in judicial reviews of decisions by the economic and regulatory bodies, such as (in 2013): Everything Everywhere’s judicial review of the Competition Commission’s decision on mobile call termination charges in the Competition Appeal Tribunal and the Court of Appeal in ([2013] EWCA Civ 154, where the Court noted his skill as an advocate); on behalf of Global Radio in its challenge to the Competition Commission’s decision that its merger in the radio sector should be partly dismantled; and on behalf of the water regulator, Ofwat, in the challenge mounted by a company to a decision based on economic principles under the Water Industry Act.

He has acted in a series of major environmental judicial review cases, on matters extending from habitats protection for dolphins in the English Channel to the international CITES convention, and the EU regime on pollution control. In 2010 and 2011, he acted for a group of environmental organisations in a judicial review challenge to the EU Carbon Trading regime as it applied to international aviation, which led to a landmark judgment of the European Court of Justice on the interface between public international law norms and European freedom to legislate on matters affecting third countries (Case 366/11, Air Transport Association of America v. Secretary of State for Energy and Climate Change).

“Brilliant on his feet” and “An extremely dedicated QC who is always helpful, gets to the nub of issues and is willing to go the extra mile to make sure you get the best advice.” – Chambers UK

“He is very ordered and clear and he picks up on where the bench is coming from very quickly.” – Chambers UK

Jon Turner KC has a very strong niche practice in environmental law, particularly in judicial review cases and cases raising EU and international law issues. Chambers UK reported that he is: “a popular brief for litigious matters in the environmental arena and counts Greenpeace and the Environment Agency amongst his many clients. Clients say that he is a superb barrister who is especially good on the more complex cases, particularly those with an EU angle to them.” Legal 500 commented that: “he can turn a reasonable case into a really strong argument”.

He has acted as lead advocate in a series of major environmental judicial review cases in the High Court, the Court of Appeal, and in the European Courts, on matters extending from habitats protection for dolphins in the English Channel to the international CITES convention, and the EU regime on pollution control. In 2010 and 2011, he acted for a group of environmental organisations in a judicial review challenge to the EU Carbon Trading regime as it applied to international aviation, which led to a landmark judgment of the European Court of Justice on the interface between public international law norms and European freedom to legislate on matters affecting third countries (Case 366/11, Air Transport Association of America v. Secretary of State for Energy and Climate Change). He has also acted in numerous judicial reviews relating to the EU and UK landfill and waste law rules, and the groundwater protection regime.

“He is a fabulous leader of a team; he will keep things down-to-earth and he doesn’t have any trace of arrogance or pomposity.” –Chambers UK

 “A first-rate intellect and a very powerful advocate; his grasp of environmental law is tremendous.” – Legal 500

Administrative & Public Law: “Jon understood the issues quickly and distilled his advice neatly. He is pragmatic in his approach and aware of wider, non-legal considerations.” – Chambers UK, 2024

Competition Law (ranked as a Star Individual): “Jon is a very steady pair of hands, experienced, and commercially aware.” “He’s one of the best barristers I’ve ever had the privilege of working with.” “He is incredibly clever, very calm and steady and very experienced and user-friendly.” “He is the top KC in this area.” “He simply has it all!.” “He brings a nice atmosphere to a team of younger advocates, giving them substantial guidance and autonomy, and is perfect both for public authorities and private clients.” “He has all the qualities of an excellent advocate, and knows how to handle all kinds of difficult situations in court in the most calm and effective manner I have ever seen.” “Jon is absolutely excellent and probably the best at Monckton.” – Chambers UK, 2024

European Law: “He is very smart, knows the area really well, and gets properly involved and engaged.” “Jon is very clear in court. He never runs bad points and is able to present a case while focusing on strong points.” – Chambers UK, 2024

Telecommunications: “Jon is intellectually very strong and impressive in front of clients.” “One of the finest advocates at the Bar, he is wholly reliable and extremely effective.” – Chambers UK, 2024

Leading silk in Competition: “Jon has a calm forcefulness about him and his strategic thinking is second-to-none.” – Legal 500, 2024

Leading silk in EU Law – Legal 500, 2024

Leading silk in Telecoms (regulatory): “A fantastic team player.” – Legal 500, 2024

Administrative & Public Law: “He is very impressive; his advice is extremely academic and shows an acute understanding of his clients’ interests.” “Jon is remarkably hands-on and responsive, and always makes time when you need him to. It is obvious his skill is not lost on judges.” – Chambers UK, 2023

Competition Law (ranked as a Star Individual): “Jon is a master of his discipline. Second to none when it comes to silks in competition. He really cuts through complex issues and is very strategic.” – Chambers UK and Chambers Global, 2023

European Law: “Very calm and has all the detail at his finger tips. He has the ear of the court.” – Chambers UK, 2023

Telecommunications: “He is excellent at understanding the broader strategic aims of the client.” “He is one of the very best advocates at the Bar.” – Chambers UK, 2023

Leading silk in Competition: “Jon is careful, tenacious and truly a top level silk.” – Legal 500, 2023

Leading silk in EU Law: “Jon has a great court presence, in complete command of the facts and law and able to field all questions confidently and sets out his case lucidly.” – Legal 500, 2023

Leading silk in Telecoms (regulatory): “One of the best advocates at the Bar. Wonderful to work with and fearsome to have on the other side.” – Legal 500, 2023

“Jon Turner QC is “one of the most in-demand competition silks with the great ability to read a court and run a robust case”.” – Competition, Who’s Who Legal Global Guide 2022

“Jon Turner QC has “an admirable courtroom poise and delivery”, according to peers who laud him as “a fine barrister.” – Competition, Who’s Who Legal UK Bar 2022

Recommended in Telecoms, Who’s Who Legal UK Bar 2022

Recommended in Environment, Who’s Who Legal UK Bar 2022

Recommended in Media & Entertainment, Who’s Who Legal UK Bar 2022

Administrative & Public Law: “He is one of the best in competition law.” “Impressive counsel.” – Chambers UK, 2022

Competition Law (ranked as a Star Individual): “He is a wonderful team leader who is hands-on and on top of every bit of detail of the case.” “His attention to detail and how thoroughly he prepares for hearings is impressive.” “Brilliantly clever, super calm, and thinks tactically and strategically about things.” – Chambers UK and Chambers Global, 2022

European Law: “Whatever he does, he acts with complete devotion.” – Chambers UK, 2022

Telecommunications: “He is a formidable opponent. He is the best in the business.”- Chambers UK, 2022

Leading silk in Competition: “An extremely bright advocate and an exceptional leader.  His superb client skills, responsiveness and strategic judgement are unrivalled at the competition Bar.” – Legal 500, 2022

Leading silk in EU Law: “As good as it gets if you need advice on novel and difficult points regarding EU law.” – Legal 500, 2022

Leading silk in Telecoms (regulatory): “He is a truly exceptional advocate.” – Legal 500, 2022

“Sauces laud Jon Turner QC as “an excellent competition advocate who is in high demand”. His “compelling oral advocacy” and “ability to explain complex legal matters in a comprehensive manner” are received with further aplomb.” – Competition, Who’s Who Legal Global Guide 2021

Recommended in Telecoms & Media, Who’s Who Legal Global Guide 2021

Administrative & Public Law: “Really superb in terms of his advocacy and all-round effectiveness.” – Chambers UK, 2021

Telecommunications: “An exceptional lawyer and advocate, who is arguably the best competition barrister in the UK. This means that he is in high demand, but he is always willing to find time to deal with issues.” “He is very thorough, he presents his points clearly, and he finesses his argument to the point where he knows he is going to win.” “Jon is an engaging advocate, who is incredibly persuasive and doesn’t give up.”- Chambers UK, 2021

European Law: “Jon is always very clear and pragmatic.” – Chambers UK, 2021

Competition Law: “An exceptional lawyer and advocate; arguably the best competition barrister in the UK.” “Jon is the absolute pinnacle – always top of the list.” “He is unbelievably clever, measured and calm.” – Chambers UK and Chambers Global, 2021 

Leading silk in Competition: ‘‘A top competition law QC; will transform a case to the best it can possibly be (and will not take any half-baked points).’’ – Legal 500, 2021

Leading silk in EU Law: ‘‘A well respected, excellent silk. One of the best advocates I have come across.’’ – Legal 500, 2021

Leading silk in Environment: ‘‘He appears to possess the entire skillset – he is both a superb technical lawyer and a bold and engaging advocate of the highest calibre.’’ – Legal 500, 2021

Leading silk in Telecoms (regulatory): ‘‘Excellent understanding and commercial application of competition law – persuasive advocate and forensic in legal analysis. Quite fearless in running difficult points.’’ – Legal 500, 2021

“Tactically astute and excellent to work with” say peers. He has deep experience in abuse of dominance and collusion cases.” – Competition, Who’s Who Legal UK Bar 2020

“Distinguished as a go-to silk for complex telecoms disputes, including regulation and competition matters.” – Telecoms, Who’s Who Legal UK Bar 2020

Administrative & Public Law: “A brilliant advocate and an experienced and effective strategist.” “He sees a lot more than other barristers I’ve worked with. He’s easy to work with and his advice is spot on..” – Chambers UK, 2020

Telecommunications: “An extremely silky advocate” who is “calm and unflappable in his advocacy.” “Highly intelligent and a really great strategist, he’s great on his feet and an excellent all-rounder.”- Chambers UK, 2020

European Law: “Offered excellent advice in relation to competition claims.” – Chambers UK, 2020

Competition Law: “Rolls up his sleeves and gets stuck in as a full member of the team.” “He has a good read on what judges are going to like and makes sure that the whole energy of the case points in the right direction.” “If an argument comes from him judges take it seriously, because they know that he is not going to take silly points. Even if it is a difficult point, he articulates it in a way that the judge will get behind.” “Clients love him because he’s able to explain things very clearly and concisely.” “He knows what a general counsel needs to do to translate thorny legal issues to their CEO; he is able to give nuggets of concise information and advice that they can pass on to stakeholders in their business.” – Chambers UK and Chambers Global, 2020 

Leading silk in Competition: ‘‘The master of competition law, if he does not know it, it is not worth knowing.’’ – Legal 500, 2020

Leading silk in EU Law: ‘‘He offers very clear, measured advocacy.’’ – Legal 500, 2020

Leading silk in Environment: ‘‘Strong across the board as technical lawyer, advocate, adviser and tactician; an excellent public law and EU lawyer.’’ – Legal 500, 2020

Leading silk in Telecoms (regulatory): ‘‘He is a compelling advocate who can turn a court around.’’ – Legal 500, 2020

“A real star at the Bar and a very established name” say sources who applaud his “razor-sharp intellect” and praise his “astonishing mastery of any case he takes” – Competition, Who’s Who Legal UK Bar 2019

“Draws high praise from peers …” – Telecoms, Who’s Who Legal UK Bar 2019

Administrative & Public Law: “A silky smooth advocate – great on his feet and very bright.” “Absolutely outstanding, he’s a great tactician and strategist who leads the team effectively without dominating it.” – Chambers UK, 2019

Competition Law: “He is a brilliant advocate who presents difficult arguments in a pleasant way and leads the team in a way that makes it clear that it is a team effort.” “Turner is very effective in court and tough under pressure.” – Chambers UK and Chambers Global, 2019

Environment: “Intellectually strong and knowledgeable. An excellent advocate and a good strategic thinker.” – Chambers UK, 2019

European Law: “Technically very good and very solutions-focused.” – Chambers UK, 2019

Telecommunications: “Decisive, thorough and an excellent team player.” “A silky-smooth, compelling advocate who can often turn a court around.”- Chambers UK, 2018

Leading silk in Competition: ‘‘A fluent advocate, always calm and has an impressive command of the details of the case’’ – Legal 500, 2018

Leading silk in EU Law: ‘‘A very fluent advocate, always calm and has an impressive command of case details.’’ – Legal 500, 2018

Leading silk in Environment:‘‘An inspirational leader, strong across the board: as a technical lawyer, as an advocate, as an adviser, as a tactician and as a hard worker.’’ – Legal 500, 2018

Leading silk in Telecoms (regulatory): ‘‘He is very hardworking and has been on the leading cases in the field.’’ – Legal 500, 2018

Administrative & Public Law: “A brilliant advocate and an experienced and effective strategist.” – Chambers UK, 2018

Competition Law: “He is probably the top claimant barrister in competition litigation. He remains calm and comes up with novel arguments on the claimant side.” – Chambers UK, 2018

Environment: “His is a measured and effective form of advocacy.” – Chambers UK, 2018

European Law: “He listens to all views, understands the core of the matter and is clear and decisive, both in his advice and on his feet.”– Chambers UK, 2018

Telecommunications: “Decisive, thorough and an excellent team player.” “A silky-smooth, compelling advocate who can often turn a court around.”- Chambers UK, 2018

Leading silk in Competition: ‘‘The best in the business – if you are against him, you are likely to lose.’’ – Legal 500, 2017

Leading silk in EU Law: ‘‘A phenomenal lawyer with a brilliant mind, wealth of experience and tremendous judgement.’’ – Legal 500, 2017

Leading silk in Environment:‘‘He has incredible attention for detail and no point or issue passes him by.’’ – Legal 500, 2017

Leading silk in Telecoms (regulatory): ‘‘He is excellent on his feet.’’ – Legal 500, 2017

Competition Law: “He is an extremely assured performer. Even when given an extremely testing time he does an excellent job.”-Chambers UK, 2017

Administrative & Public Law: “Brilliant on his feet.” “An extremely dedicated QC who is always helpful, gets to the nub of issues and is willing to go the extra mile to make sure you get the best advice.” – Chambers UK, 2017

Environment law: “He gave us a clear indication of what we needed to do and what we couldn’t do and left a very strong impression with the client.” “He is a fabulous leader of a team; he will keep things down-to-earth and he doesn’t have any trace of arrogance or pomposity.” – Chambers UK, 2017

European law: “Jon is highly regarded and has a keen insight into the client’s commercial objectives.” – Chambers UK, 2017

Telecommunications law:  “He’s quite fearless in that he will take difficult points on, and he enjoys the thrill of trying to get judges to change their minds on something difficult.” “Jon is brilliant: he’s incredibly clever and a great advocate.” – Chambers UK, 2017

Leading Silk in EU and Competition: “A master of his subject and a compelling advocate who can turn a court around.” – Legal 500, 2016

Leading Silk in Environment: “A first-rate intellect and a very powerful advocate; his grasp of environmental law is tremendous.” – Legal 500, 2016

Leading Silk in Telecoms (regulatory): “He probably could quite literally argue that black is white.” – Legal 500, 2016

Competition: Recommended for his “tremendous analytical and intellectual powers”. He is “a superb advocate” and “a consummate handler of the most complex and intricate cases”, according to clients. – WHO’S WHO LEGAL (WWL) UK BAR 2016

Environment: Known for his “innovative” and “impressive” practice. His environmental work covers judicial review cases and cases raising EU and international law issues. – WHO’S WHO LEGAL (WWL) UK BAR 2016

Media & Entertainment:  “A heavyweight” at the bar, and is praised for his “clear sightedness in relation to complex issues”. – WHO’S WHO LEGAL (WWL) UK BAR 2016

Telecommunications: One of the finest advocates in telecoms law”. He is praised for having “impressively strong analytical skills” which makes him “a barrister of choice” for many. – WHO’S WHO LEGAL (WWL) UK BAR 2016

Administrative & Public Law: “He is very bright, works hard and is good on his feet.” – Chambers UK, 2016

Competition Law: “Has few equals in competition law” and “is never caught out by a question in court.”  “Extremely clever and hard-working, he’s tactically astute and excellent to work with.”- Chambers UK & Chambers Global, 2016

Environment: “He has a brain the size of a planet, is unbelievably hard-working and is so motivated that he inspires the people around him. He does all that while being gentle and humble.” – Chambers UK, 2016

European Law: “He is fantastically impressive and really has a sense of how to get the sympathy of the court.” – Chambers UK, 2016

Telecommunications: “Jon is silver-tongued and expert at putting forward a clear, seductive case, whilst also picking apart the opponents.” – Chambers UK, 2016

Leading Silk in EU and Competition Law: ”A brilliant brain, huge forensic skills and great with clients.” Legal 500, 2015

Leading Silk in Environment Law: ”He is a leader in the truest sense; as an advocate he is incredibly persuasive.” Legal 500, 2015

Leading Silk in Telecoms Law: ”Fantastic grasp of detail and huge forensic skills.” Legal 500, 2015

Administrative & Public Law: “He is very impressive, and phenomenal in terms of his judgement and knowledge in the field of EU compliance.” – Chambers UK, 2015

Competition Law: “He works incredibly hard and leaves nothing to chance.” “A gold standard barrister, he’s a superb advocate who masters the detail and gives himself absolutely to the case.” – Chambers UK, 2015

Environment: “He has tenacity and an exceptional ability to get to the heart of the matter.” – Chambers UK, 2015

European Law: “He is always on top of issues and knows how to cut through the bluster of a case.” – Chambers UK, 2015

Telecommunications: “One of the established stars of the Regulatory Bar, Turner has extensive experience in the telecoms field.” – Chambers UK, 2015

‘Phenomenally bright, and one of the leading competition barristers of his generation.’ Jon Turner QC is ranked as a top tier leading Silk in EU & Competition Law – Legal 500, 2014

‘Very user friendly.’ Jon is a recommended Leading Silk in Environment Law – Legal 500, 2014

‘Phenomenally bright.’ Jon Turner QC is ranked as a leading Silk in Telecommunications Law – Legal 500, 2014

Under Administrative & Public Law: “He is very easy to deal with, and is a prodigious worker, who is very clever and a good advocate.” “He is calm, lucid and extremely diligent.” Chambers UK, 2014

Under Competition Law: Viewed by peers and clients as a silk at the absolute forefront of the competition market. His formidable advocacy skills have recently been demonstrated in some of the most significant and complex cases. “He is always in complete command of the detail but also keeps in mind the big picture. He is a superb strategist and a forceful advocate.” “Demonstrates complete mastery of this area.” Chambers UK, 2014

Ranked in Band 2 for Environmental Law. Chambers UK, 2014

Under Telecommunications:One of the most respected telecoms litigators, with experience of representing clients in the full range of disputes across this area. His roles in the two recent rounds of mobile termination price control appeals speak volumes for his reputation. “One of the most impressive barristers around, who can make a silk purse out of a pig’s ear.” “Very intense and highly competent.” Chambers UK, 2014

‘A hardworking silk who handles the whole range of competition litigation‘, Jon Turner QC is ‘ferociously bright‘, and is ‘an excellent performer under pressure‘. Recommended as a leading Silk in EU and Competition Law. Legal 500, 2013

‘A terrific lawyer, and very easy to work with’, Jon Turner QC is also recommended as a leading Silk under Telecommunications Law and Environmental Law. Legal 500, 2013

Under Telecommunications:  “Jon Turner QC is a regular choice of the top solicitors in the market, and is roundly regarded as one of the best competition and regulated utilities counsel in the land. Solicitors like him as “he shows you the light in a case and directs you down the path that is best for you.”” Chambers UK, 2013

Under Environment: “Jon Turner QC is a popular brief for litigious matters in the environmental arena and counts Greenpeace and the Environment Agency amongst his many clients. Clients say that he is a superb barrister who is especially good on the more complex cases, particularly those with an EU angle to them.” Chambers UK, 2013

Under Competition/European Law: “There was an abundance of supporting evidence for Jon Turner QC’s star ranking in terms of both the work he has recently undertaken and the quality of the feedback he received from the market. He is “someone you want playing on your team” as he is “formidably bright and incredibly personable,” and he “has a complete grasp of incredibly complex cases.” One example of his recent work saw him act as lead counsel for National Grid in a highly significant damages claims. He also acted for Toshiba Carrier and others in a claim for damages from industrial copper tubing suppliers.” Chambers UK, 2013

Under EU and Competition Law: “The ‘very highly regarded’ Jon Turner QC has great expertise in litigation, EU law, telecoms and utility regulation.”- Legal 500, 2012

Jon Turner QC is recommended as a leading silk in EU and Competition Law. Legal 500, 2012

Jon Turner QC is recommended as a leading silk in Environment Law. Legal 500, 2012

Under Public & Administrative Law: “Jon Turner QC’s talents tend towards competition issues, and he is widely seen as being “a man of fabulous intellect, who always offers great support to those that instruct him.” He has been a notable favourite for telecoms operators over the past year, acting in several challenges to Ofcom decisions in all levels of court.” – Chambers UK, 2012

Competition/European Law: “Jon Turner QC receives high praise from sources, who state that “he is hands-on, tenacious, and worth his weight in gold as he knows the OFT inside out.”“Hard-working and tactically astute, he is simply excellent to work with,”according to solicitors. His many notable cases have included leading the team for Reckitt Benckiser in relation to the OFT’s abuse of dominance investigation for its conduct in the supply of the stomach remedy Gaviscon.” – Chambers UK, 2012

Environment: “Jon Turner QC is “extremely thorough and excellent on his feet.” In addition to his expertise in public and environmental law, he is very popular in the competition and telecoms arena. Recently, he represented the Environment Agency in a judicial review brought against it by landfill operator Anti Waste. This case hinged on the agency’s approach to compliance with EU-wide landfill laws and EU groundwater protection laws.” – Chambers UK, 2012

Telecommunications: “Jon Turner QC has “got the lot – he’s a brilliant advocate, and really gets to grip with the case.” Famed for his mastery of public and regulatory law, he acted for Carphone Warehouse in one of the largest pieces of telecommunications litigation of 2010, which ran both in the CAT and before the Competition Commission. It consisted of two related, and ultimately successful, appeals against Ofcom decisions concerning the pricing of BT’s ‘copper wire’ telephone and broadband wholesale products.” – Chambers UK, 2012

EU & Competition Law recommends ‘Fantastic silk’ Jon Turner QC who “is ‘impressive and hardworking’, and appeared in Humber Oil Terminals Trustees Limited (joint venture Totel and Conocophilips) v Associated British Ports.”  Legal 500, 2011

Environment recommends Jon Turner QC as a leading silk. Legal 500, 2011

“”Praised for his outstanding work in both public and private competition cases, Jon Turner draws high acclaim from several peers, and is recognised as a “very good, dynamic and tenacious” practitioner. He has represented Reckitt Benckiser in the OFT’s abuse of dominance investigation over allegedly preventing generic versions of heartburn medicine Gaviscon. Turner is also heavily involved in numerous cartel damages claims and follow-on actions, ranging from the gas insulated switchgear cartel to the liquid crystal display and cathode ray tube investigations. He is lauded as a “first-rate” lawyer.”” – Global Competition Review: Barrister Survey, 2011

“Jon Turner QC is lauded as “an incisive, commercially focused and adaptable team player” who hoovers up much of the best work in the market. His highlights include acting as lead counsel for National Grid in connection with an abuse of dominance matter before the CAT.” In Competition/European Law – Chambers UK, 2011

Under Public & Administrative Law in Chambers UK, 2011  “Jon Turner QC ‘has a strong reputation as a decisive competition litigator with strength in complex regulatory judicial review. Recent matters for him include acting for the Secretary of State in the Administrative Court and consequent proceedings in the ECJ over the validity of an EU-wide law capping the price of mobile roaming services’.”

“Jon Turner QC is a leading competition and telecoms expert with additional strength in public and environmental law. He recently represented a coalition of environmental NGOs involved in a judicial review brought on behalf of the Air Transport Association of America seeking to overturn the EC’s greenhouse gas trading programme for aviation activities.” Environmental Law – Chambers UK, 2011

Telecommunications Law, Chambers UK, 2011 states that “”Impressive in his focus and strategic thinking,” Jon Turner QC is “a courtroom king who can dance round opponents.” He is popular as he is “a principled barrister who won’t run any old argument, preferring to speak with real conviction on issues he has thought long and hard over.” Never short of a brief, he recently represented T-Mobile in a joint appeal with Vodafone and other mobile operators against the Competition Appeal Tribunal (CAT) ruling that charges for mobile call termination should apply retrospectively.”