Shawn McArthur

Currently on maternity leave

Shawn McArthur joined Ampersand in 2018. Prior to joining Ampersand Shawn was a Legal Secretary at a global law firm, based in Edinburgh, working Dispute Resolution and prior to that worked in Property and Insolvency teams.

Shawn brings a friendly outlook and efficient work ethic to the team.

 

Back

Jennifer Dunn

Jennifer Dunn joined Ampersand in 2007. She holds an honours degree in politics and completed a paralegal qualification in Civil Court Practice. With over 15 years experience in the legal sector, including time as a Legal Secretary in a firm of Edinburgh solicitors, Jennifer has an extensive knowledge of all aspects of instructing counsel.

Jennifer’s personable outlook and efficient manner has established her as an important member of the Clerking team.

Jennifer works Mondays to Thursdays.

Back

Alan Moffat

Alan Moffat heads up the Ampersand Clerking team. With over 25 years experience in the legal sector, Alan has been with the stable since 2000 – initially as deputy clerk and taking over as head clerk in 2007. Alan previously worked at the Scottish Legal Aid Board. Alan holds an LL.B with Distinction and paralegal certificates in civil court practice and criminal law. He is the Legal 500 Scotland Awards Clerk of the year 2024.

Alan has in-depth knowledge of fees in privately funded cases, judicial expenses and legal aid funding. He regularly attends taxations before Auditors of Court and negotiates accounts on behalf of counsel.

Alan has particular interests in LegalTech and Wellbeing and sat on the Law Society of Scotland’s LawscotTech Advisory Board from 2019 to 2025, and currently sits on the Faculty of Advocates Wellbeing Committee. He has spoken regularly for the Law Society of Scotland’s ‘CPD for New Lawyers’ series, on instructing advocates and is happy to provide insight into the bar for trainee and newly qualified solicitors.

During his career, Alan has built up an extensive knowledge of legal practice, providing him with the tools to assist Ampersand’s instructing agents and members. Alan’s knowledge of members’ practises and fees means he is well placed to assist with all inquiries in relation to instructing counsel.

Back

Susanne Tanner KC FCIArb

Susanne Tanner KC took Silk in 2016, having called to the Bar in 2000. She is an experienced court practitioner who is always thoroughly prepared and has superb attention to detail.

She has built up and maintained a quality practice spanning:

She also sits as a tribunal chair in the First-tier Tribunal Housing and Property Chamber as well as the Health and Education Chamber, holds a number of academic appointments and is the Executive Editor of Green’s Scottish Education Manual.

Susanne is also a Door Tenant at Crown Office Chambers, London.

Legal Directory testimonials

Chambers UK Bar 2026 – Independent Investigations quotes:

Provided by Chambers & Partners

“I really enjoyed working with her. Difficult situations arose and she knew how to deal with them, making us feel at ease”. Independent Investigations respondent UK Bar

“Susanne Tanner is one of the top practitioners. She is extremely bright and very personable.” Independent Investigations respondent UK Bar

“Susanne Tanner brought a high level of expertise to the matter, which was supplemented ably by her keen grasp on the issues.” Independent Investigations respondent UK Bar

Chambers UK Bar 2026 – Public and Fatal Accident Inquiries quotes:

Provided by Chambers & Partners

“Susanne is one of the top practitioners. She is extremely bright and very personable.” Public & Fatal Accident Inquiries respondent UK Bar

Legal 500 Scottish Bar:

Crime and regulatory

Leading Silk “An expert in her field.”

Administrative and public law

“Susanne is a strategic and pragmatic decision maker with meticulous attention to detail.”

Back

Aidan O’Neill KC

King’s Counsel at the Scottish Bar, Bar of England and Wales and Bar of Ireland. A wide ranging legal practice in both London and Edinburgh, with particular experience and expertise in commercial judicial review, environmental/Aarhus law and in employment/equality law. A specialist in EU law, in human rights law and in UK constitutional law. Awarded the Legal 500 UK Bar Award for Scottish Silk of the year for 2020 and EU law Silk of the year in 2015 and Scottish Legal Awards 2017, 2018 and 2019 Silk of the year.

A highly experienced pleader before the top courts. Senior counsel in almost thirty cases to date from across the UK before the UK Supreme Court/ House of Lords, as well before the Court of Justice of the European Union and the European Court of Human Rights.

Previously teaching fellow at Princeton and Edinburgh universities. Author of substantial academic articles, blog posts and legal practitioner texts.

Selected recent Cases

Back

Alan Dewar KC

Alan Dewar KC was admitted to the Faculty of Advocates in 1989 and took silk in 2002. He was the Treasurer of the Faculty of Advocates from 2007 to 2011. Over the years he has appeared in a wide range of civil and criminal cases, particularly in the fields of commercial, public law, and professional and clinical negligence. In addition, he has acted for and advised companies and public authorities on contractual and delictual disputes, public procurement, regulatory and licensing issues, as well as other agencies such as the Registers of Scotland, and professional bodies such as the Institute of Chartered Accountants of Scotland (ICAS). He is a legal adviser to the Institute and Faculty of Actuaries. He has also represented companies, other corporate bodies and individuals in a number of public inquiries, planning inquiries, fatal accident inquiries, defamation actions, and intellectual property disputes. In the public law sphere he has extensive experience in the field of judicial review, human rights and immigration. Alan is also often appointed by the Court to act as Commissioner in Section 1 (“dawn raid”) petitions.

Alan has extensive advocacy experience arising from practising as a solicitor and advocate for more than 30 years. This includes Inner and Outer House experience in the Court of Session as well as a significant number of appearances in the House of Lords, Privy Council, the UK Supreme Court, the European Commission in Strasbourg and the UEFA Disciplinary Tribunal in Geneva. He was junior counsel to the Orkney Inquiry; standing junior counsel to a number of Government Departments including the Department of Trade and Industry and the Scotland Office; an Advocate Depute for three years; and also has extensive experience in planning and other inquiries, and before various other Tribunals. Between 2009 and 2011 he successfully represented the Lord Advocate and the Scottish Ministers in the AXA insurance case (which confirmed the validity of the Damages (Asbestos-related Conditions)(Scotland) Act 2009), ultimately in the UK Supreme Court.

He also acted for the Scottish Ministers in the Clostridium Difficile Inquiry chaired by Lord MacLean: the Report of the Inquiry was published in 2014. In November 2013 he successfully represented the pursuer/appellant in Cramaso LLP v Viscount Reidhaven’s Trustees in the UK Supreme Court, a case concerned with the tenancy of a grouse moor in which the principal issue was whether there was sufficient proximity between an individual and a LLP such as to create a duty of care in the context of negligent misrepresentations. He also acted for the successful pursuers in Frank Houlgate Investment Co Ltd v Biggart Baillie LLP [2014] CSIH 79 in which The Inner House upheld the decision of Lord Hodge after proof. The pursuers established that a solicitor and his firm were liable to the pursuers for facilitating a continuing fraud when the solicitor had continued to act for a fraudster even after he had confessed to the fraud. More recently he has acted for a number of asylum seekers in various challenges to the operation of the Dublin II and III Regulations, and for the successful petitioners in Ochiemhen and Menuba v SSHD [2016] CSOH 179 and 180 (concerned with alleged breaches of visas granted to the petitioners to operate as entrepreneurs in the UK) and Alagoz v SSHD [2017] CSOH 27 (concerned with the operation of the EEC – Turkey Association Agreement).

Back