Attorney Stephan Horster advises and defends clients in all areas of criminal law, especially commercial criminal law and criminal tax law. He has extensive forensic experience gained in numerous large and structural investigations and proceedings before courts throughout Germany.

Further focus areas of his work are the defence of companies in fine proceedings and the rules of professional practice, especially for attorneys. As part of his postgraduate legal clerkship for the Second State Law Examination, Stephan Horster has worked as instructor for the Munich Bar Association.

After his studies at Ludwig-Maximilian-Universität, Munich, Stephan Horster has focused exclusively on criminal law since the commencement of his professional activities in 2010. In 2014, he obtained the title “Certified Specialist in Criminal Law”. Since June 2026, he is a member of the board of the Munich Bar Association.

Stephan Horster advises clients in German, English, and French.

• Commercial criminal law

• Criminal tax law

• Extradition, legal assistance, and INTERPOL

• European Public Prosecutor’s Office

• Compliance/internal Investigations

• Bank criminal law

• Capital market criminal law

• Corruption: prevention and defence

• Medical criminal law

• Rules of professional practice

• Criminal labour law

• Best Lawyers Ranking of Handelsblatt 2023, 2024, 2025 and 2026

• WirtschaftsWoche magazine 2026: „Top Lawyer Compliance”

• Deutsche Börse AG (cum/ex-proceedings)

• Several bank management board members concerning the suspicion of breach of trust

• Defendant in the “Eurofighter Affair” (Germany/Austria)

• Representation in proceedings concerning the “rampage in Grafing“ (accessory private prosecution)

• Various defendants concerning the suspicion of value-added-tax evasion in connection with “VAT carousel fraud schemes”

• Various defendants concerning the suspicion of withholding and embezzling remuneration in connection with “false self-employment”

• Insurance companies concerning the suspicion of violation of the German Foreign Trade and Payments Act

• Cum-Ex: The Forfeiture of Bonus Payments in Conjunction with the Imposition of a Fine and a Prison Sentence, Juristische Rundschau 2025, pp. 565–574 (co-authored with Dr. Alessandra Simmer) [2025]

• On the criminal liability of elected officials for corruption – The “mask affair” and the response of the legislature; lecture as part of the WisteV event series “Prosecution of corruption – what's coming, what's staying, what's going?!” June 5, 2025

• Introductory course on criminal law for trainee lawyers, regular lecturing as part of the training program for trainee lawyers at the Munich Bar Association

• “Criminal law risks in legal practice” – lecture together with attorney Florian Kraus, regular lecturing as part of the training program for trainee lawyers at the Munich Bar Association

• Arbeitsgemeinschaft Strafrecht des DAV

• Münchener Anwaltverein e.V.

• Initiative Bayerischer Strafverteidigerinnen und Strafverteidiger e.V.

• Verein Deutsche Strafverteidiger e. V.

German, English, French