Fiona Haddadeen

Practice Areas

Fiona is a highly regarded expert in extradition law and has been involved in a number of major cases throughout her career.

Fiona has successfully defeated extradition requests from the USA, Republic of South Korea, Kuwait, and Turkey as well as most European and EU member states. The offences contained in these requests have ranged from large scale Ponzi scheme frauds and business crime to drug trafficking and murder. Fiona is adept at dealing with complex issues such as human rights and prison conditions; dual criminality; people trafficking; torture; PTSD and forum. Her clients range from vulnerable sole carers to high profile individuals and cases that deal with politically motivated requests.

Fiona has also provided strategic import advice and representation to individuals facing extradition to the UK from jurisdictions across the world involving complex issues such as specialty.

In addition to her extradition work, Fiona’s practice also encompasses criminal investigations, both in the UK and international jurisdictions.

Career

Before joining Kingsley Napley in 2024, Fiona worked within the Extradition Unit at the Crown Prosecution Service and then at a leading private practice criminal defence firm.

Professional Memberships

Since 2021, Fiona has been a committee member of the Defence Extradition Lawyers’ Forum (DELF).

Work Highlights

Notable extradition cases

• Successfully defended a US extradition request for a defendant involved in one of the largest global ponzi schemes alleged to be worth $4 billion worldwide. (2023)

• Successfully defended the first ever extradition request received by the UK from South Korea in connection to the largest stock price manipulation in South Korea’s history. (2022)

• Successfully defended one of the first few extradition requests received by the UK from Kuwait. (2023)

• Successfully defeated request for extradition from Bulgaria for client wanted on an accusation warrant in respect of a particularly serious allegation of murder which took place in 1999. (2021)

• Acted for client in landmark case and lead authority on the issue of prison conditions in Turkiye – extradition was successfully defeated on dual criminality. (2024)

• Acted for client facing extradition to Poland to stand to stand trial in respect of one offence of murder and one offence of assault. (2024)

• Acted for client facing extradition to US to stand trial for offences of wire fraud and money laundering valued at least $99million. (2024)

Clients

"From the bottom of our hearts, we want to thank you for everything you’ve done since our very first call. We will always remember the incredible effort you’ve put into getting his case to where it is today. It’s been a tough, stressful journey, but through it all, we’ve felt so lucky to have someone as understanding, dedicated, professional, and determined as you dealing with it all. Words cannot fully capture how truly grateful we are for your unwavering commitment. You are a force to be reckoned with!"

- A client

"She is incredibly smart, dedicated, relentless and always made us feel comfortable and cared for even during her days off. Fiona was very strategic in putting such a stellar team of counsel and experts for our case.”

- A client

"I am writing to you, to express something that simple words in an email can scarcely convey – our profound and heartfelt gratitude for everything you have done for us. Your unwavering support, expertise, and compassion have been more than just professional guidance; they have been a source of strength and comfort in one of the most challenging periods of our lives. Thank you, once again, for being our pillars of strength.”

- A client