THE TEAM

The MARSIGNY GOSSET AVOCATS practice offers its clients the support of a team of ten experienced lawyers who are fully dedicated to criminal defence.

The team is tightly knit, available and responsive. It offers close support to clients and partners with regard to their needs and interests, making available analytic capabilities and expertise in judicial practices gained over 25 years, in order to provide a tailor-made active criminal defence.

The team is a highly senior one, and it conducts the biggest criminal proceedings which involve complex legal issues which are heavily publicised and / or have much at stake. They are accustomed to working in defence teams, and are involved in all the specific areas of criminal law.

 

PARTNERS

Emmanuel MARSIGNY

Emmanuel MARSIGNY

A member of the Paris Bar since 1995, and a member of the International Bar Association, Emmanuel Marsigny is an internationally known defence specialist.

A former partner of the practice METZNER ASSOCIES, which he co-founded in 1998, Emmanuel Marsigny created his own firm, MARSIGNY AVOCATS, in October 2013.

Over a period of 25 years, Emmanuel Marsigny has been involved in the majority of major criminal cases, including the Furiani stadium drama, the ELF case, the fictitious jobs of the city of Paris, Angolagate, and the Concorde crash, as well as the case of ill-gotten property, the sale of the Compiègne racecourse, the Brétigny sur Orge railway disaster, the Madoff case, the Balkany case, the disappearance of the President of Interpol….

A seasoned expert of cases which are sensitive and / or which have received media attention, Emmanuel Marsigny regularly pleads before ordinary courts (Assize courts, correctional courts and appeals courts) and specialist courts, and even independent administrative authorities.

He speaks French, English and Spanish.

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Cyril GOSSET

Cyril GOSSET

Cyril Gosset has been a lawyer with the Paris Bar since 1998. He holds a certificate of specialisation in criminal law, and is today known as a criminal defence specialist.

Cyril Gosset began his professional activity in the business practice CHAIN LACGER and Partners. Since 1999, he has collaborated with Olivier Metzner, whose practice (which has an international reputation) specialised in business criminal law. In 2005, he created his own practice in the centre of Paris while developing his expertise in the prevention of criminal risk and in the provision of assistance to individuals and companies facing criminal proceedings. In January 2018, with a wealth of twenty years of experience as a specialist in criminal law, he joined the practice MARSIGNY AVOCATS. The practice MARSIGNY GOSSET AVOCATS originated in January 2019.

During recent years, Cyril Gosset has been involved in the Wagram Circle case, the Médiator affair, one of the Madoff cases, the alleged embezzlement activity of the Eurodisney company committee, the Brétigny derailment, the Aristophil scandal, the Rio Paris crash, the “Balkany” case and even the Bataclan attacks.

Cyril Gosset is a graduate of the Toulouse Business School. He is a member of the Criminal Lawyers Association and has served as a senior counsel in the permanent legal assistance organised by the Bar of Paris.

He speaks French and English.

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Louis GUESDON

Louis GUESDON

Registered with the Paris Bar since 2010, for nearly ten years Louis Guesdon has developed a practice which specialises in criminal law; business-related criminal law in particular.

A graduate of HEC and the University of Paris 1, Panthéon-Sorbonne in business law, and trained in mergers / acquisitions with major lawfirms, Louis Guesdon chose to practice criminal defence, and began his professional activity in 2010, as a partner at the METZNER ASSOCIES practice, alongside Emmanuel Marsigny.

After five years of collaboration, Louis Guesdon became a partner at MARSIGNY AVOCATS prior to the merger with GOSSET AVOCATS, from which the practice MARSIGNY GOSSET AVOCATS originated.

In recent years, Louis Guesdon has worked in some of the most important criminal cases of the period: the “ill-gotten goods” affair, one of the “Madoff” affairs, the “Balkany” affair, and even the ENI-SAIPEM/SONATRACH affair, the disappearance of the President of Interpol, among others.

Louis Guesdon acts in all areas of criminal defence law; in particular, business criminal law: corruption and other breaches of probity, tax criminal law, money laundering, corporate criminal law, labour-related criminal law… he also deals with transnational cases which combine several criminal proceedings.

He speaks French, English and Italian.

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ASSOCIATES

  • Arnaud Delmas Avocat Paris

    Arnaud DELMAS

    A lawyer with the Paris Bar since 2010, Arnaud Delmas has a university education in business law and international taxation, which he undertook at the University of Paris II Panthéon Assas in partnership with HEC.

    He is also a graduate at Sciences Po Paris, where he majored in  strategy and corporate finance.

    As part of his professional training, Arnaud Delmas did internships in both business and commercial banking, and even in a law practice, in France and in the UK as well.

    After being sworn in, he joined the LE BORGNE – SAINT-PALAIS Partners practice, where he acquired nearly five years of experience in business criminal law, before joining the MARSIGNY AVOCATS practice in September 2015.

    He has been involved in criminal business law cases (criminal law concerning the stock market and financial criminal law, tax criminal law, international criminal law, extradition) and general criminal law (offences against property, offences against persons).

    Arnaud Delmas speaks French and English.

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  • Florent Dejonge Avocat Paris

    Florent DEJONGE

    A lawyer with the Paris Bar since 2011, Florent Dejonge has a university education in international law (international litigation, international criminal law and law governing fundamental liberties).

    As part of his professional training, Florent Dejonge did internships at the international criminal court, as well as in the arbitration department of the practice GIDE LOYRETTE NOUEL.

    A graduate of the Paris Bar training school, he joined the dispute resolution department  of the practice BIRD & BIRD, where he acquired more than three years of experience in business litigation.

    He joined the GOSSET AVOCATS practice in 2014.  In this context, he has dealt with cases relevant to various aspects of criminal law.

    Florent Dejonge speaks French and English.

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  • Valeria Cepoi

    Valeria CEPOI

    She has a university education in international and European law and she graduated from Nanterre International Law College, and has been a lawyer with the Paris Bar since 2016.

    After completing internships at the Court of Justice of the European Union and in law practices in business litigation and business criminal law (SYGNA PARTNER, SCP FRENCH CORNUT GENTILLE and HUC-MOREL LABROUSSE Partners), she joined the MARSIGNY AVOCATS practice in December 2015.

    She has been involved in business criminal law cases (criminal law related to the stock market and financial criminal law, tax criminal law, international criminal law, extradition) and general criminal law cases (offences against property, offences against persons).

    Valeria Cepoi speaks French, English and Romanian.

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  • Julie WEBER Avocat au Barreau de Paris

    Julie WEBER

    A lawyer with the Paris bar since 2016, Julie Weber has a university education in criminal law and criminal sciences.

    As part of her professional training, Julie WEBER has done an internship at the Interregional Directorate of Prison Services.

    She has also provided tutoring in private law in the faculty of law, political sciences and management at Strasbourg.  

    She joined the practice MARSIGNY AVOCATS in 2016 and, in this context, has handled cases in business criminal law (criminal law related to the stock market and financial criminal law, tax criminal law, international criminal law, extradition) and general criminal law (offences against property, offences against persons).

    Julie Weber is a graduate of the Certificate in English law obtained at the University of Birmingham.

    Julie Weber speaks French and English.

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  • Louis JAY Avocat Paris

    Louis JAY

    A lawyer with the Paris Bar since 2018, Louis Jay is trained in business criminal law (University of Paris II Panthéon Assas, Catholic University of Lille) and a graduate of the EDHEC “Grande école” programme, in which he studied law, finance and taxation.

    He also obtained the criminal science certificate at the Institute of Criminology in Paris, to train in the practice of criminal law and criminal proceedings.

    During his professional training, Louis Jay completed an internship in financial risk management at RBS in London, and trained as a lawyer in the practices SPINOSI & SUREAU and BOUGARTCHEV & MOYNE Partners.

    During his training at the Bar School, he spent one year with the magistrates at the office of the General Prosecutor at the Paris Court of Appeal, in chambers specialising in economic and financial crime.

    He joined the practice MARSIGNY GOSSET in 2018. In this context, he has dealt with cases relevant to different aspects of criminal matters.

    Louis JAY speaks French and English.

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