Sian Langley
Partner, Walkers (CI) LP
Jersey
Sian is a partner in Walkers' Regulatory practice in Jersey, specialising in financial services regulation matters.
Sian has experience of working within a national regulator as a senior lawyer, as a knowledge lawyer focused on onshore financial services regulation, and as a Barrister in private practice, as well as working offshore.
She advises on matters relating to AML/CFT obligations, fintech and payments, consumer credit regulation, prudential regulation, and general corporate compliance and governance.
She also advises businesses in Jersey and onshore about their obligations under Jersey's regulatory regime and assists clients with regulatory investigations.
Sian has many years of experience in advising on EU law relating to financial products and services.
She advises on matters relating to AML/CFT obligations, fintech and payments, consumer credit regulation, prudential regulation, and general corporate compliance and governance.
She also advises businesses in Jersey and onshore about their obligations under Jersey's regulatory regime and assists clients with regulatory investigations.
Sian has many years of experience in advising on EU law relating to financial products and services.
Sian is a highly accomplished and versatile regulatory lawyer who has had top class experience in a number of jurisdictions, and I would not hesitate to use her.
Experience and recent work
Before joining Walkers' Jersey office in 2023, Sian worked as a senior knowledge lawyer for a leading domestic Irish law firm.
Prior to that, she worked as a senior lawyer in the Central Bank of Ireland – the Irish financial services regulator. Between 2008 and 2018, she was a Barrister in private practice in Ireland.
Sian has also been a Programme Director of Law at Griffith College Cork, a Lecturer in Law of Evidence at University College Cork, and chairperson at the Irish Immigrant Support Centre.
Prior to that, she worked as a senior lawyer in the Central Bank of Ireland – the Irish financial services regulator. Between 2008 and 2018, she was a Barrister in private practice in Ireland.
Sian has also been a Programme Director of Law at Griffith College Cork, a Lecturer in Law of Evidence at University College Cork, and chairperson at the Irish Immigrant Support Centre.
Qualifications
Admitted in:
- Ireland (Barrister at Law) - 2008
Qualifications:
- BCL Hons Law, University College Cork (NUI)
- LLM (Criminal Justice), University College Cork (NUI)
- BL, The Honorable Society of King's Inns
- Diploma in Finance Law, Law Society of Ireland
Sian is admitted on the roll of practising barristers with the Irish Legal Services Regulatory Authority and is also a member of the Jersey Funds Association Regulatory & Compliance Sub-Committee.
Sian is also involved in the following local community organisations: Chair of FREEDA (free from domestic abuse, formerly Jersey Women's Refuge) and a committee member of The Greening Jersey Trust.
Sian is also involved in the following local community organisations: Chair of FREEDA (free from domestic abuse, formerly Jersey Women's Refuge) and a committee member of The Greening Jersey Trust.
2026 - Legal 500 - Regulatory and white-collar crime - Band 2: "Sian Langley and Gemma Palmer are both very approachable, responsive, technically sound, down to earth in manner and easy to work with."
2024 – Legal 500:
"Sian Langley is a highly accomplished and versatile regulatory lawyer who has had top class experience in a number of jurisdictions, and I would not hesitate to use her."
"I have found Sian Langley to be technically adept, with strong presentation skills and with a very strong work ethic. Her multi-jurisdictional ability means that she is able to get to the nub of regulatory issues quickly."
"Sian Langley's understanding of Jersey's legal system is comprehensive. Sian worked under pressure and to very tight deadlines. I was very impressed with her approachability and commitment to the project. The client was satisfied with the deliverable, and Sian played a big part in this."
"A very good team, and what impressed me most was its depth and experience."
"Dilmun Leach and Sian Langley are two highly competent lawyers who are able to leverage their experience and are very knowledgeable."
"Excellent team with a depth of knowledge and understanding."
Team Members
Other team members with related expertise
Dilmun Leach
Partner, Walkers (CI) LP
Jersey
Gemma Palmer
Partner, Walkers (CI) LP
Jersey