Sullivan & Cromwell has made a rare lateral hire in London, bringing in white-collar crime expert Louise Delahunty from U.K. firm Simmons & Simmons, reports Legal Week.

Delahunty, who joined Simmons from London white-collar boutique Peters & Peters in 2006 to help establish the firm’s crime, fraud, and investigations group, is due to start at Sullivan on June 20, according to a firm statement annoucing the hire.