Rajah & Tann Asia

Co-Head, Fraud, Asset Recovery & Investigations

Jansen co-heads the firm’s Fraud, Asset Recovery & Investigation Practice and covers a wide range of commercial matters with a strong emphasis on cross-border disputes.

A leading practitioner in cryptocurrency and digital technology, Jansen successfully obtained Singapore’s first reported case of a worldwide Mareva injunction against “Persons Unknown” and third party disclosure orders against cryptocurrency exchanges in CLM v CLN. Additionally, he acted for a group of Russian cryptocurrency algorithmic traders in a US$100 million dispute relating to trade revenue and proprietary software, as well as advised liquidators of a cryptocurrency investment platform involving misappropriation of over US$300 million of cryptocurrency assets.

Jansen also specialises in anti-corruption and regulatory Investigations, having acted for one of the largest Singapore conglomerates in a highly publicised corruption scandal in Brazil. This was the first ever FCPA resolution involving a Singaporean company, and an unprecedented global settlement co-coordinated with criminal authorities in three jurisdictions in the US, Brazil and Singapore. The firm was awarded “Boutique or Regional Practice of the Year” at the Global Investigations Review Awards in 2018 for its role in this matter, which was also nominated for “Most Important Development of the Year”.

Jansen has substantial experience in court litigation and arbitration. He has successfully argued a trial in the Singapore High Court as Lead Counsel since he was a Senior Associate. He has regularly been involved in high-profile trials and appeals, such as the case of Hwang Cheng Tsu Hsu v OCBC, the leading authority in Singapore on banker’s duty relating to suspected elderly fraud and mental incapacity, and AKN v ALC, for which the Court of Appeal’s decision is the leading authority on the consequences of setting aside an arbitral award on the tribunal’s mandate.

Most recently, Jansen has been identified as a “key lawyer” by The Legal 500 for Dispute Resolution. Benchmark Litigation Asia Pacific 2024 named Jansen as a “Future Star” and clients have praised him for his “prompt responses, quick reaction, creative solutions, and deep knowledge.”

Jansen was identified by Singapore Business Review as one of Singapore’s most influential lawyers under 40 in 2016, and appointed as a member of the Young Amicus Curiae scheme with the Singapore High Court for two terms in 2010 and 2011.