Harriet Fitzsimons
Harriet Fitzsimons is an Associate in our Business Crime & Investigations team. She represents both individuals and organisations in a wide range of matters, including criminal investigations and proceedings, extradition cases, public inquiries, and public law challenges. Harriet has experience handling complex, multi-jurisdiction, high-profile, and sensitive cases, often involving political or human rights dimensions.
Harriet’s practice encompasses complex financial crime, serious and general criminal matters, extradition and INTERPOL cases, sanctions, protest law, and public inquiries. She has acted in cases involving fraud, money laundering, bribery and corruption, terrorism, violent and sexual offences, protest and public order offences, and social media-related offences.
Harriet provides pre-charge advice, including guidance on internal investigations, and regularly defends both public and private prosecutions. Harriet has acted in cases before the magistrates’ court, Crown Court, High Court, Court of Appeal, and European Court of Human Rights. She has a strong track record of securing out-of-court disposals and discontinuances. She advises clients at the police station and is experienced in interviews under caution, whether following arrest or conducted voluntarily.
Prior to joining Peters & Peters, Harriet trained at a boutique firm specialising in criminal and public law matters. She graduated with a first-class honours degree in Philosophy from the University of Leeds, before completing the LPC with distinction at BPP Law school.
Case examples
Acted for an individual in both the Magistrates Court and High Court facing extradition to Moldova, this case became a test case for extraditions to Moldova.
Acted for a former CEO of a large company accused of Conspiracy to Defraud and False Accounting in the Crown Court and Court of Appeal.
Undercover Policing Inquiry – acting for the Designated Lawyer who represents Metropolitan Police undercover officers and managers.
Acted for a client in relation to the removal of politically motivated data on INTERPOL.
Acted for an individual who was subject to a Terrorism, Prevention and Investigation Measures Order in statutory review proceedings in the High Court.