Tamlyn Edmonds > Edmonds Marshall McMahon > London, England > Lawyer Profile

Edmonds Marshall McMahon

Work Department

Private prosecutions/white-collar crime.


Tamlyn is a founding Partner of Edmonds Marshall McMahon.  Tamlyn specialises in serious fraud, cyber-crime, asset recovery, international fraud, and intellectual property crime.  She is typically instructed by corporates, HNW victims of fraud, NGO’s, those involved in the investigation of national/international fraud and luxury brands.

Tamlyn is a highly experienced prosecutor.  Prior to founding Edmonds Marshall McMahon, Tamlyn headed up the Department of Health, Medicines and Healthcare products Regulatory Agency’s (MHRA) specialist team of prosecutors, a role in which she gained an impressive reputation.  Tamlyn was the lead lawyer in the largest-ever counterfeit medicines case prosecuted by the Department of Health, R v Gillespie and others (2011) concerning the importation of counterfeit, prescription only, life-saving medicines which eventually reached the legitimate supply chain within the UK, leading to a rare Class 1 recall by the MHRA.

Tamlyn has significant experience in restraint and confiscation, having dealt with a number of cases over the years including the largest ever confiscation order (£21 million) ever to be awarded in a private prosecution, R v Somaia (2016).  She also has experience in the area of extradition, both within and outside the EU.

Tamlyn has dealt with a number of cases on behalf of companies and individuals including: serious fraud, trade mark offences, international crime (including challenging Interpol Red Notices), perverting the course of justice, harassment, misconduct in a public office, blackmail, reputational management cases and injunctive relief.  Tamlyn is highly regarded by her clients and is known for her exceptional grasp of criminal law and procedure, and her imaginative approach to ensuring her clients achieve the best results. She is a recommended individual in the area of White-collar Crime and Regulatory Investigations and Corporate Crime.


Called 2000; senior prosecution lawyer Government Legal Service 2003-12, including leading the Department of Health, Medicines and Healthcare Products Regulatory Agency (MHRA)’s specialist team of prosecutors from 2008; partner Edmonds Marshall McMahon 2012-todate.


Proceeds of Crime Lawyers Association (POCLA); Fraud Lawyers Association (FLA); The Female Fraud Forum; The Fraud Women’s Network; Fraud Advisory Panel; Extradition Lawyers Associations.


Queen Mary University 1996-99.

Lawyer Rankings

London > Crime, fraud and licensing > Fraud: white-collar crime (advice to individuals)

Specialist player Edmonds Marshall McMahon is dedicated to private prosecution work. Within this niche it has experience across a wide range of private prosecutions, including those allegedly guilty of fraud, financial crime and corporate dishonesty. Its team is made up of investigators, barristers and solicitors and it advises clients in the oil and gas, property investment, personal investment and charity sectors. The team is headed by the ‘clever and driven‘ Kate McMahon, the ‘diligent and knowledgeable‘ Andrew Marshall and the ‘unwavering‘ Tamlyn Edmonds. McMahon handles serious fraud, international crime and perverting the course of justice matters. Marshall is recommended major fraud prosecutions and regulatory matters. Edmonds focuses on serious fraud, cyber-crime, asset recovery, international fraud, and intellectual property crime.