Brattle conducted a data intensive investigation into violations of US sanctions against Iran by Turkish financial services businesses that were disguising their activity as gold, and later, food trade. The investigation involved tracing financial transactions through accounts at Turkish and UAE banks in multiple currencies and associated US correspondent bank transactions when transfers were made in US dollars. Brattle integrated these data sources onto a single platform, creating metadata and data on communications involving bank employees and the known persons of interest outside the bank. Our analysis also made use of changes in the sanctions regime to identify potentially related activity and communications. Our work contributed to the high-profile criminal conviction.