The head of the U.S. Treasury Department’s Financial Crimes Enforcement Network has been hired away by one of the world’s largest banks — the latest in a trend of regulators joining entities they formerly regulated. Andrea Gacki will become Citigroup’s global head of sanctions on October 1, and will join the bank’s independent risk management leadership team, according to an internal announcement shared with OCCRP. Her jump to the private sector was shared with Citi employees after markets closed on Thursday by Tom Anderson, the bank’s chief compliance officer. Prior to that she was the director of the Treasury Department’s Office of Foreign Assets Control, which enforces U.S. government sanctions on both individuals and corporate entities. She faced hostile questions on a range of issues, from banking regulation to the finances of U.S. President Donald Trump.