Marie BÉLÉZY

Attorney at the Seine-Saint-Denis Bar

Criminal law - White Collar Criminal Law

Firm

Admitted to the Bar in 2026, Marie Bélézy holds a Master’s degree (Master 2) in International and White-Collar Criminal Law from Paris Panthéon-Sorbonne University (2022) and an LL.M. from the University of Edinburgh. Excellence and an unwavering commitment are at the heart of her practice.

Fluent in both French and English, she advises and represents individuals and companies at every stage of criminal proceedings, from the investigation or judicial inquiry to pleadings before the Tribunal correctionnel [Criminal Court], the Cour d’assises [Assize Court], or the Cour criminelle départementale [Departmental Criminal Court].

After seven years of training in leading criminal defense law firms, Me Bélézy founded her own firm upon taking her oath in 2026, with the aim of providing tailored, human-centered, and determined legal defense.

Convinced that every case is unique, Me Bélézy develops a clear legal strategy and defends her clients’ rights with strength and conviction.

expertise

Tailor-Made Criminal Defense

Tailor-Made Criminal Defense

The firm provides assistance at all stages of criminal proceedings, whether you are under investigation, formally charged, or a victim, in both misdemeanor and felony cases.
Me Bélézy handles all types of criminal offenses, including:

  • Felonies: murder, manslaughter, rape, terrorism, etc.
  • Misdemeanors: theft, handling of stolen goods, extortion, sexual assault, drug trafficking, etc.

White-Collar Crime

Me Bélézy also practices in business criminal law, representing clients in sensitive and complex matters such as:

  • Money laundering
  • Fraud and breach of trust
  • Misuse of corporate assets

Judicial Investigation

The firm provides assistance throughout the judicial investigation.

Me Bélézy notably intervenes to :

Police Interviews & Police Custody

Defense at Every Stage of the Proceedings

The firm intervenes from the preliminary investigation stage, whether during a voluntary police interview or police custody, with 24/7 availability in emergency situations.

Why be assisted by a lawyer ?

When an interview is scheduled, a preparatory meeting is held beforehand to define a clear and effective defense strategy together.

Representation before the Criminal Court

Immediate Trial & Summons Hearings

The firm of Me Bélézy represents clients before criminal courts, whether in emergency proceedings—such as a comparution immédiate [immediate appearance] —or following a summons to appear before the Tribunal correctionnel [Criminal Court] at a later date.

Immediate Trial: Emergency Defense and Full Responsiveness

As an exception to the usually lengthy judicial process, immediate appearance proceedings take place following police custody. The accused is tried immediately after being brought before the prosecutor.

The firm provides urgent assistance with the aim of:

Summons Hearings: Anticipation & Personalized Strategy

When you are summoned to appear before the court at a later date, Me Bélézy undertakes thorough preparation, including :

Actualités juridiques

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A dedicated and determined defense strategy

Assize Court Dedicated Defense in the Most Serious Cases

Me Bélézy represents clients before :
These courts have jurisdiction over the most serious criminal offenses (felonies) following a judicial investigation. Hearings generally last several days or even weeks and require intensive and rigorous preparation.

A dedicated and determined defense strategy

The firm is fully committed to :

Building a coherent and robust defense strategy

Conducting multiple preparation meetings, including in detention

Examining every piece of evidence with precision

Supporting you with attentiveness, humanity, and determination up to the hearing

Me Bélézy is firmly committed to pleading with strength, conviction, and professionalism, regardless of the seriousness of the charges or the complexity of the case.

Fees

Fees are determined in compliance with the ethical principles governing the legal profession, namely: “[…] according to the client’s financial situation, the difficulty of the case, the costs incurred by the lawyer, the lawyer’s reputation, and the work performed.” (Article 11 of the Act of 31 December 1991) Depending on the nature of the case, fees may be set according to the following arrangements:

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