Mathias Grzesiek > Rosinus Partner > Frankfurt, Germany > Lawyer Profile

Rosinus Partner focuses on compliance and investigations, including matters pertaining to allegations of corruption, cum-ex, embezzlement as well as the diesel emissions scandal. Criminal lawyer Christian Rosinus and Mathias Grzesiek, who specialises in cyber-based criminal law, IT criminal law and data protection, jontly head the practice. Janina Brandau (white collar crime and tax law) was appointed to partner in January 2023.

Rosinus Partner ‘s commercial and criminal tax law expertise is called upon by a diverse range of private and public individuals in the context of individual defence, including managing directors, PE managers or influencers, which face allegations of commercial and criminal tax law allegations, whereas traditional diesel emissions, cum-ex and cum-cum proceedings continue to contribute to the team’s workload. The renowned commercial criminal lawyer Christian Rosinus jointly heads the practice with Mathias Grzesiek, who focuses on criminal IT and cyber crime as well as data protection, while Janina Brandau, who made partner in January 2023, frequently assists with criminal tax law matters.

Led by Christian Rosinus and Mathias Grzesiek, Rosinus Partner offers large companies and start-ups criminal law advice at the interface with compliance, including risk analyses in the areas of money laundering and corruption, while also frequently acting at the interface with criminal and corporate law. The appointment of Janina Brandau to salary partner in January 2023 strengthened the capacities in criminal tax and sanctions law. This is complemented by forensic experience in supporting internal investigations.