# Collova Consulting | Carl Rohsler

> Collova Consulting Ltd is the consultancy of Carl Rohsler, a UK solicitor-advocate based in London. Carl is a specialist intellectual property lawyer and a leading expert on gambling law, ranked by Legal 500 and Chambers & Partners as a leading lawyer in both Intellectual Property and Gambling.

Key facts (from this website):

- Solicitor since 1995; Solicitor Advocate (High Court Civil) since 2001.
- More than 30 years practising in intellectual property and technology; well-known as a leading lawyer in the gambling sector.
- Legal 500 Hall of Fame 2021-2025.
- Chambers & Partners Gambling Table 1 2005-2025.
- Chambers Global Guide to the Legal Profession: listed as a "global leader" in both Gambling and IP.
- Chambers & Partners Global IP Table 4 Ranked 2022-2025.
- Recognised in Chambers Global 2026 for Intellectual Property and Gaming.
- Judge at the EGR B2B Awards 2026 (3 June 2026, City Central at the HAC, London).
- Career: CEO Collova Consulting Ltd (2025 to present); Partner, Head of Commercial, IP and Tech, Memery Crystal (2018-2025); Partner, EMEA head of IP and Gambling, Squire Patton Boggs (2003-2018); Norton Rose Fulbright (1993-2003).
- Education: Merton College, Oxford, MA (History); University of Law, Chester.
- Author of The Statute Guide to the Gambling Act 2005 (Sweet & Maxwell 2005), The Statute Guide to the National Lottery Act 2006 (Sweet & Maxwell 2006) and Licensing Law and Practice (Sweet & Maxwell 2008); general contributing editor of The Gambling Law Review 2015-2025; founding editor of Online Gambling Lawyer 2004-2018; Lexis Nexis contributing expert author on gambling taxation and licensing; on the editorial board of the 5th edition of Smith & Monkcom: The Law of Gambling.
- Obtained more than 75 gambling licences; acted on the creation of The Health Lottery; advises on skill games, prize draws, social casinos, prediction markets, betting syndicates, spread betting and gambling tax structuring.
- Contact: Carl primarily provides his services through Keystone Law; the best way to contact him is by email at carl.rohsler@keystonelaw.co.uk. Through Collova Consulting: collova@rohsler.com, +44 7793 917 621, 2 Bedford Row, London SE1 4GP. Company number 16218631.

## Pages

- [Home](https://www.collova.co.uk/): Collova Consulting Ltd is the consultancy of Carl Rohsler, a London solicitor-advocate ranked by Chambers & Partners and Legal 500 (Hall of Fame) as a leading lawyer in both gambling law and intellectual property.
- [Articles and posts](https://www.collova.co.uk/articles-and-posts/): Rohsler on...: articles by Carl Rohsler on UK gambling law and practice, including social casinos, skill and chance, exempt lotteries, slot games and betting syndicates.
- [Gambling](https://www.collova.co.uk/gambling/): Carl Rohsler's gambling law practice: Gambling Commission licensing and compliance, product classification, lotteries, skill games, prize draws, social casinos, prediction markets, disputes and transactions, with representative mandates.
- [IP & tech](https://www.collova.co.uk/ip-and-tech/): Carl Rohsler's IP and technology practice: trade marks, designs, patents, copyright and confidential information, software licensing and IP litigation, with representative reported cases.
- [Carl Rohsler - CV](https://www.collova.co.uk/carl-rohsler-cv/): CV of Carl Rohsler: solicitor since 1995 and solicitor-advocate since 2001; former partner at Squire Patton Boggs and Memery Crystal; author of the Statute Guide to the Gambling Act 2005; listed by Chambers Global as a global leader in Gambling and IP.
- [Testimonials](https://www.collova.co.uk/testimonials/): What Chambers & Partners, Chambers Global and Legal 500 say about Carl Rohsler: Legal 500 Hall of Fame 2021-2025, Chambers Gambling Table 1 2005-2025, and client comments on his gambling and IP work.
- [Contact / Working Together](https://www.collova.co.uk/contact/): How to contact Carl Rohsler: he primarily provides his services through Keystone Law (carl.rohsler@keystonelaw.co.uk); Collova Consulting can be reached at collova@rohsler.com or +44 7793 917 621.
- [Questions](https://www.collova.co.uk/questions/): Questions and answers about Carl Rohsler: who he is, his gambling law and IP work, his directory rankings, his publications, his international work and how to instruct him.
- [Legal & privacy notice](https://www.collova.co.uk/legal-and-privacy-notice/): Legal notice, website terms and privacy policy of Collova Consulting Ltd, company number 16218631, 2 Bedford Row, London SE1 4GP.

## Rohsler on... (articles by Carl Rohsler)

- [Can an unregulated social casino operate in the UK?](https://www.collova.co.uk/articles-and-posts/rohsler-on-social-casinos/): Sweepstake casinos have spread rapidly across the United States. Can the same dual-currency model be offered to British consumers without a Gambling Commission licence? In my view it can, but only if the route by which winnings leave the platform is built with real care. (September 2026; [PDF](https://www.collova.co.uk/articles-and-posts/pdf/Rohsler-on-Social-casinos-September-2026.pdf))
- [Skill, chance and uncertainty: three different (but related) concepts in English gambling law](https://www.collova.co.uk/articles-and-posts/rohsler-on-skill-and-chance/): Whether a product is gaming, a lottery, a bet or a lawful contest often turns on three words which the public uses loosely and the law does not. This piece explains what each means, why they must be kept apart, and how they work in the definitions of gaming, lotteries and betting. (September 2026; [PDF](https://www.collova.co.uk/articles-and-posts/pdf/Rohsler-on-Skill-and-chance-September-2026.pdf))
- [Raffles, sweepstakes and tombolas: which small lotteries can you run without a licence?](https://www.collova.co.uk/articles-and-posts/rohsler-on-exempt-lotteries/): The raffle at a charity ball, the tombola at a church fete and the office Grand National sweepstake are all lotteries in law. Most can be run perfectly lawfully without a licence, but only within limits which the Gambling Act 2005 sets out in some detail. This is a short guide to where those limits lie. (September 2026; [PDF](https://www.collova.co.uk/articles-and-posts/pdf/Rohsler-on-Exempt-lotteries-September-2026.pdf))
- [The windmills of my mind: what is a slot game, and why does the law care what it looks like?](https://www.collova.co.uk/articles-and-posts/rohsler-on-slot-games/): Online slot games now carry their own stake limits and their own design rules. Which games are caught depends on a definition which looks at how a game is displayed, and says nothing about how it is played or what harm it may do. This article looks at that definition, and at the odd results it produces. (September 2026; [PDF](https://www.collova.co.uk/articles-and-posts/pdf/Rohsler-on-Slot-games-September-2026.pdf))
- [More syndicate than sinning: what is a betting syndicate, and is it legal?](https://www.collova.co.uk/articles-and-posts/rohsler-on-betting-syndicates/): Betting syndicates are legal, common and almost entirely undocumented in the legal literature. They are not businesses, but they can drift into becoming one. They are treated with suspicion by banks, and by almost no one else. This is the first of a short series of articles on how syndicates work, where the legal stress points lie and what can be done about them. (September 2026; [PDF](https://www.collova.co.uk/articles-and-posts/pdf/Rohsler-on-Betting-syndicates-September-2026.pdf))

## Independent profiles

- [Chambers & Partners UK profile](https://chambers.com/lawyer/carl-rohsler-uk-1:13332)
- [Chambers Global profile](https://chambers.com/lawyer/carl-rohsler-global-2:13332)
- [Legal 500 profile](https://www.legal500.com/firms/2949-keystone-law/r-england/lawyers/-carl-rohsler)
- [Keystone Law profile](https://www.keystonelaw.com/lawyers/carl-rohsler)
- [Law Society register entry](https://solicitors.lawsociety.org.uk/person/45648/carl-andrew-rohsler)
- [LinkedIn](https://www.linkedin.com/in/carlrohsler/)

## Optional

- [Full text of this website](https://www.collova.co.uk/llms-full.txt)