Duncan Black | Fieldfisher
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Professional background

Professional background

My experience is in both contentious and non-contentious financial services work, including disputes, regulatory enforcement, disciplinary action and internal investigations on the contentious side; and on the non-contentious side, perimeter guidance, conduct of business, systems and controls and compliance reviews. I have a particular focus on money laundering and market abuse.

Regulatory work covers clients including broker/dealers, banks, corporate finance providers, financial advisers, individuals and a regulated investment exchange on matters including: Conduct of Business, Market Abuse/disclosure of price sensitive information; systems and controls breaches; judicial review of disciplinary action; personal account dealing and conflicts of interest.

I defend clients under investigation by the FCA, LME and SFO. Coming from a litigation background enables me to consider the wider picture and consequences of any regulatory breach and to deploy evidence gathering skills when investigating regulatory breaches. I help clients who may be facing a VREQ.

Litigation work has included allegations of breach of fiduciary duty against a Cayman Fund director; the restructuring of a UAE Sukuk, numerous cases on calculating ISDA early termination amounts, and the leading case on the meaning of the FCA's Client Money rules (which reached the Supreme Court). I frequently act for transaction parties in securitisations.

Awards & recognition

Awards & recognition

Legal 500 2025
Duncan Black is calm, thoughtful and very easy to deal with. He is the kind of person you want involved when things are delicate or potentially contentious.
Legal 500
2024
Duncan Black: highly motivated, energetic and intelligent – and always on the lookout for an innovative solution through a difficult legal thicket. Duncan Black very quickly ascertains the situation and where the parties stand, who are the appropriate parties and provides advice that is easy to comprehend. He also reaches out to other teams to provide comprehensive advice when needed
Legal 500
2022
Duncan Black is incredibly experienced and instils great confidence. Duncan Black’s advice has been invaluable, guiding us as Directors and legal laypeople through an extremely taxing period with hands-on, practical steps. He asked probing questions and grasped the complex situation we were facing very quickly and helped us address matters in a matter-of-fact, plain-speaking manner. Duncan’s particular strength has been to spend his, and focus our, time on the things that matter. His communications with us have always been to the point and his turnaround time for questions as they arose impressively fast.
Chambers & Partners
2021
Duncan Black offers his clients advice on a wide range of contentious matters related to banking and finance. He regularly handles claims concerning financial mis-selling, derivatives and shareholder disputes. "A great lawyer with outstanding technical and strategic skills." "Duncan kept a cool head throughout the litigation. He kept the clients informed and considered strategies to manage their concerns at the tactics adopted by the opposition."

Authored pieces

All Resources
A vibrant digital graphic featuring a world map overlayed with candlestick charts and data points. The map is depicted with a blue and pink color scheme, and arrows indicate various stock prices and trends, set against a blurred, futuristic background.
Insight

Non-market risks in liability driven investment (LDI): Getting it right

26.09.2023
Liability driven investment (LDI) arrangements are legally complex. While they are often tailored to suit the requirements of individual schemes, there are a number of common legal issues which are critical to understanding and managing a number of risks in liability driven investment arrangements.
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A digital landscape featuring a 3D grid with glowing numbers in various colors, including blue and pink. The numbers appear to be floating above the grid, forming peaks and valleys, suggesting a representation of data or stock market trends.
Insight

Advertising crypto investments

12.09.2022
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A close-up view of the base of large marble columns and steps, possibly part of a governmental or historic building. The image is tinted with a gradient of purple to blue hues, giving it a modern and stylized effect.
Insight

IFPR: The ill effects of Goodwill for investment groups

24.06.2022
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Insight

UK Government's vision for Financial Services sector

02.08.2021
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Insight

Protecting investors in Mini-Bonds; will new regulation work where the old regulation failed?

28.04.2021
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What others say…

Legal 500 2025
Duncan Black is calm, thoughtful and very easy to deal with. He is the kind of person you want involved when things are delicate or potentially contentious.
Legal 500
Duncan Black: highly motivated, energetic and intelligent – and always on the lookout for an innovative solution through a difficult legal thicket. Duncan Black very quickly ascertains the situation and where the parties stand, who are the appropriate parties and provides advice that is easy to comprehend. He also reaches out to other teams to provide comprehensive advice when needed
Legal 500
Duncan Black is incredibly experienced and instils great confidence. Duncan Black’s advice has been invaluable, guiding us as Directors and legal laypeople through an extremely taxing period with hands-on, practical steps. He asked probing questions and grasped the complex situation we were facing very quickly and helped us address matters in a matter-of-fact, plain-speaking manner. Duncan’s particular strength has been to spend his, and focus our, time on the things that matter. His communications with us have always been to the point and his turnaround time for questions as they arose impressively fast.