Gamblers take note - the law on dishonesty has changed?

A highly significant Supreme Court judgement relating to a professional gambler could herald a change to the 35 year old law on what amounts to dishonesty (the crux of many criminal offences and civil disputes).

No items found.

A highly significant Supreme Court judgement relating to a professional gambler could herald a change to the 35 year old law on what amounts to dishonesty (the crux of many criminal offences and civil disputes).

The Supreme Court have held that Mr Ivey cheated his way to a £7.7m casino win, following a 2012 game of Punto Banco in Crockfords Club in Mayfair played out over two days. Ivey admitted relying on a technique called 'edge-sorting' - spotting tiny differences in the backs of playing cards - to tilt the odds in his favour. The original trial judge accepted that Mr Ivey was truthful when he said that he did not regard what he did as cheating.

The fascinating judgment, led by Judge Lord Neuberger and available here, tells us that Ivey did not touch any cards, but persuaded the croupier to rotate the most valuable cards by intimating that he was superstitious. He brought an action against the club after it refused to pay out his winnings. He told the court that he regarded his technique as legitimate gamesmanship, but the club’s view was that he was guilty of ‘cheating’.

The Supreme Court said Ivey’s actions were ‘positive steps’ to fix the deck and therefore amounted to cheating, regardless of what he believed. This was a fundamental change to the previous legal position; namely that one could now be considered to be dishonest without appreciating it. Although this was a civil case, the Supreme Court said that this new test for determining dishonesty should also apply to criminal trials - meaning there is no requirement for a defendant in a criminal case to appreciate that their actions were dishonest.

The previous legal authority on dishonesty, R v Ghosh, was settled in 1982 but in the view of the Supreme Court it has ‘serious problems’. That case involved a surgeon who was convicted for receiving payments for work carried out by others. The Ghosh test required juries to consider whether the defendant would have realised that ordinary honest people would regard his behaviour as dishonest. The Supreme Court said that such an approach means that the less a defendant’s standards conform to society’s expectations, the less likely they are to be held criminally responsible. ‘The law should not excuse those who make a mistake about contemporary standards of honesty, a purpose of the criminal law is to set acceptable standards of behaviour’ the judgment states. If that is right then it would appear that it is not necessary for a finding of dishonesty to be made, that a defendant must appreciate that what he has done is ,by the standards of ordinary decent people dishonest.

Whilst this case was a civil dispute, the Supreme Court took the opportunity to make it clear that 'there can be no logical or principled basis for the meaning of dishonesty to differ according to whether it arises in a civil action or a criminal prosecution.’

Considering the impact of this decision, Leathes Prior Partner Dan Chapman (Head of our Sports Team) – who advises clients in the gambling sector - said “This decision will come as a huge relief to the gambling industry who are ever fearful of sophisticated strategies being used to beat the House, as it were. The Supreme Court have ensured that the odds remain in favour of the casinos and bookmakers.

But looking at the wider impact of the decision beyond gambling, Tej Thakkar – solicitor in my team also specialising in regulatory and criminal matters – said “This could be one of the most significant judgments in criminal law for many years, if as the Supreme Court suggest, a new test for dishonesty is applied. Since Ghosh juries have been told that defendants are only guilty if the dishonest conduct involved in the offence was dishonest by the standards of ordinary reasonable and honest people and also that they must have realised that ordinary honest people would regard their behaviour as dishonest. If this second limb of the test is to disappear, it might make convictions for dishonesty related offences easier to obtain, particularly in the more complex cases, such as those involving financial fraud.

Note: The content of this article is for general information only and does not constitute legal advice. Specific legal advice should be taken in any particular circumstance.

Article by
Tim Cary
October 25, 2017
Article by
Leathes Prior Team
October 25, 2017
You might also like...

Charity of the Month: Sue Lambert Trust

Leathes Prior is delighted to be supporting the Sue Lambert Trust as our Charity of the Month for February 2026. Sue Lambert Trust is a leading charity in Norfolk offering free therapeutic counselling and support services to survivors of sexual violence and abuse.

Rhiannon Bond
23.02.2026

Supreme Court ruling set to impact NHS - Children injured by NHS can claim damages for lifetime lost earnings

In February 2026, the Supreme Court passed a ruling which is set to significantly increase the amount of damages the NHS may have to pay for claims brought in respect of children injured at birth, as a result of medical negligence.

Kimberley Nelson
20.02.2026

The Value of Planning Ahead: LPAs & Court of Protection

Putting LPAs in place allows you to choose trusted people to make decisions for you if you lose capacity in the future. This avoids the need for loved ones to make a costly and time-consuming deputyship application to the Court of Protection. With more people likely to experience conditions affecting capacity, more families may need to turn to the Court for support where no LPAs are in place.

Jordan Walker
19.02.2026

Clinical Wills: An overview for Healthcare Practitioners

Ejike Ndaji, Partner in our Wills, Trusts and Probate Team provides an overview of Clinical Wills and their importance to Healthcare Practitioners.

Ejike Ndaji
17.02.2026

More industry insights

Stay informed with our latest legal insights.

View All

Charity of the Month: Sue Lambert Trust

Leathes Prior is delighted to be supporting the Sue Lambert Trust as our Charity of the Month for February 2026. Sue Lambert Trust is a leading charity in Norfolk offering free therapeutic counselling and support services to survivors of sexual violence and abuse.

Rhiannon Bond
23.02.2026

Supreme Court ruling set to impact NHS - Children injured by NHS can claim damages for lifetime lost earnings

In February 2026, the Supreme Court passed a ruling which is set to significantly increase the amount of damages the NHS may have to pay for claims brought in respect of children injured at birth, as a result of medical negligence.

Kimberley Nelson
20.02.2026

The Value of Planning Ahead: LPAs & Court of Protection

Putting LPAs in place allows you to choose trusted people to make decisions for you if you lose capacity in the future. This avoids the need for loved ones to make a costly and time-consuming deputyship application to the Court of Protection. With more people likely to experience conditions affecting capacity, more families may need to turn to the Court for support where no LPAs are in place.

Jordan Walker
19.02.2026

Clinical Wills: An overview for Healthcare Practitioners

Ejike Ndaji, Partner in our Wills, Trusts and Probate Team provides an overview of Clinical Wills and their importance to Healthcare Practitioners.

Ejike Ndaji
17.02.2026

Leathes Prior assists Almalumi Group on the acquisition of Yarrowside Limited

Alex Saunders, Partner in the Leathes Prior’s Corporate Team assists Almalumi Group on the acquisition of Yarrowside Limited.

Alex Saunders
17.02.2026
Will

What do Executors and Trustees do, and who should I appoint?

Charlie Watkins, Trainee Solicitor in our Wills, Trusts & Probate Team discusses what Executors and Trustees do, and who you should appoint.

Charlie Watkins
03.02.2026

Charity of the Month: Big C

Leathes Prior is pleased to support Norfolk cancer charity, Big C as its Charity of the Month for January.

Rhiannon Bond
28.01.2026

Freddie Slater becomes the first development driver to be signed by new F1 Team Audi

Dan Chapman, Managing Partner and Head of Sports at Leathes Prior acted on behalf of Freddie Slater as he becomes the first development driver to be signed by Audi Revolut F1 Team.

Peter Lambert
26.01.2026

Business Lasting Powers of Attorney – Why Your Business Needs One

The benefits of having in place Lasting Powers of Attorney (LPA) documents for one’s personal affairs are now more widely known than was previously the case, Partner, Ejike Ndaji explains.

Ejike Ndaji
26.01.2026

Breaking Up Doesn’t Have to Be Hard: FAQs for Break Clauses in Commercial Leases

Georgia Sartin, Solicitor in our Property Disputes Team answers some frequently asked questions around break clauses in commercial property leases.

Georgia Sartin
23.01.2026

The case of the fake cases: another judgment on AI-hallucinations in litigation

The use of AI Large Language Models in litigation continues to generate headlines (and consternation from the judiciary). In 2025, it seemed that rarely a month went by without a new case on fake AI-generated case law. December was no exception, and the High Court has now issued a further warning regarding the use of AI by litigants.

Chris Goodwin
15.01.2026

LP Celebrates 150th Anniversary

To begin a year of celebrations, this week Leathes Prior are delighted to reveal our refreshed brand identity and website.

Peter Lambert
05.01.2026

The Future of EOTs: Less Tax Relief, Still Strong Potential

Hugo Persad, Trainee Solicitor in our Corporate Team, summarises the impact of reduced Capital Gains Tax (“CGT”) relief on sales to Employee Ownership Trusts (“EOTs”) following the Autumn Budget.

Hugo Persad
18.12.2025

Autumn Budget 2025: Agricultural Property Relief & Business Property Relief Changes

It was announced in the 2025 Budget that from 6 April 2026, changes will be made to agricultural property relief and business property relief. These changes bring APR and BPR in line with the nil-rate band rules, meaning unused allowances can be transferred to a surviving spouse or civil partner. This is a significant step towards making estate planning easier for families who own farms or businesses.

Claire Woolliscroft TEP
18.12.2025

The Employment Rights Act 2025 is expected to come into force tomorrow (18 December 2025)

After an extended period of back-and-forth amendments between Parliament and the House of Lords, on 16 December 2025, the ERB finally received approval from the House of Lords, with the formality of Royal Assent due to take place tomorrow (18 December 2025). Head of LP Employment, Dan Chapman, explains...

Dan Chapman
17.12.2025

Charity of the Month: The Matthew Project

Leathes Prior is delighted to be supporting The Matthew Project as our Charity of the Month for December 2025. The Matthew Project supports young people and adults across Norfolk, Suffolk, and Essex to overcome issues around drugs, alcohol, and mental health, empowering them to rebuild confidence and lead fulfilling lives.

Rhiannon Bond
10.12.2025

Leathes Prior’s Milan Pandit appointed President of the Norfolk & Norwich Law Society

Leathes Prior Solicitors is proud to announce that Milan Pandit, Solicitor in our Corporate & Commercial Team, has been appointed President of the Norfolk & Norwich Law Society (NNLS) for 2025/26.

Peter Lambert
04.12.2025

Leathes Prior advises Mapus-Smith & Lemmon LLP on the acquisition Kathryn Gigg Chartered Accountants

Leathes Prior’s Corporate Team has advised Mapus-Smith & Lemmon LLP on the acquisition of Kathryn Gigg Chartered Accountants, Business Advisors & Tax Consultants.

Peter Lambert
03.12.2025

The Autumn Budget 2025: A Summary

Lucy Matthews, Solicitor in our Commercial Team summarises the Autumn Budget 2025 presented by Chancellor of the Exchequer, Rachel Reeves.

Lucy Matthews
26.11.2025

Commercial Lease Renewals: A guide for Landlords & Tenants

Commercial lease renewals are a topic that every commercial landlord and business that rents commercial premises should have at the forefront of their minds. It is essential for good succession planning, though it is often neglected until the expiry of an existing lease term is looming or once the existing term has come to an end and the tenant is holding over. In this article, our newly qualified solicitor, Maggie Berry explores the process that landlords and tenants can expect when navigating this complex area of law.

Maggie Berry
24.11.2025

Our Guidance, Your Legacy: What is a Will, and why should I make one?

Not only is a Will one of the most important steps you can take to protect your loved ones and ensure your wishes are respected, but it also limits the likelihood of a claim/dispute following your death. To ensure your loved ones and the causes you care about benefit from your estate, a Will is essential to ensuring this happens. Find out more in this article.

Ejike Ndaji
24.11.2025

Lease extensions: The essentials to getting started

Extending your lease can seem complex, but taking the right steps early can make the process much smoother. Jake Mowatt, Associate and Harry Smith, Trainee Solicitor in our Residential Property Team outlines the key essentials every leaseholder should understand prior to extending their lease.

Jake Mowatt
14.11.2025

Leathes Prior acted for Hatfield Investments Limited on the sale of Crossways Residential Home

Leathes Prior's Corporate, Commercial Property & Employment Teams acted for Hatfield Investments Limited on the sale of Crossways Residential Home.

Peter Lambert
13.11.2025

Leathes Prior assists Greenhaul Limited with sale to Ascent Acquisitions Limited

Leathes Prior’s Corporate Team has advised the shareholders of Greenhaul Limited, a family-owned Norfolk transport business, on its sale to Ascent Acquisitions Limited.

Peter Lambert
13.11.2025

Upcoming changes to bringing employment law claims: What these mean for you

The highly anticipated Employment Rights Bill (ERB) is set to increase the time limits in which employees can bring an employment tribunal claim. Gareth Stevens & Rose Woolterton explain what this means for employers & employees.

Gareth Stevens
12.11.2025

Get in Touch

By clicking submit, you agree to our Privacy Policy

Submit
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.