D Jarrett Arp is a partner in the Washington, DC office of Gibson, Dunn & Crutcher, where his practice focuses on antitrust and competition law counseling, investigations, and litigation before US trial and appellate courts. A member of the Virginia, District of Columbia, and Brussels Bars and a solicitor of England and Wales, Mr Arp regularly represents multinational clients in connection with major international cartel investigations conducted by competition law enforcement authorities around the world.
Mr Arp is Co-Chair of the ABA/IBA International Cartel Workshop (2012 - 2018). His representative matters include the representation of multinational companies as well as individuals in connection with more than twenty five international cartel investigations and antitrust-related US grand jury investigations – including plea negotiations and/or leniency applications in the United States, the European Union, Canada, the United Kingdom, Australia, Japan, Brazil and a variety of other jurisdictions. Mr Arp has also defended US and international companies, including McDonald's, Hudson News, UBS AG, Akzo Nobel, NV, Flexsys NV, and Martinair Holland NV, in a variety of civil antitrust lawsuits, including class actions involving allegations of price fixing and related claims before state and federal courts throughout the United States.
Previously an officer with the US Army's 101st Airborne Division, Mr Arp is a graduate of Wheaton College (BA) and William and Mary (JD), where he served as an Executive Editor of the William and Mary Law Review.