>Interesting Resume
All the more so considering his most recent employer and who his clients were.
https://en.wikipedia.org/wiki/Ed_O%27Callaghan
from 2011 to 2017 he was a partner at the New York office of law firm Clifford Chance.
In 2011, he joined the international law firm Clifford Chance in New York as a Partner in its White Collar, Regulatory Enforcement and Government Investigations practice group.[9] Since joining Clifford Chance, O'Callaghan has worked on several high-profile representations, including Achilles Macris, who was head of the London branch of JP Morgan’s chief investment office, where the trader nicknamed the "London Whale," Bruno Iksil, worked; [10] Jeffrey Webb, the former President of CONCACAF and FIFA Executive Committee Member, in the criminal Racketeer Influenced and Corrupt Organizations Act (RICO) indictment pending in the United States District Court for the Eastern District of New York; [11] and Fokker Services, B.V., in the successful negotiation of a Deferred Prosecution Agreement (DPA) with DOJ involving historical violations of the U.S. sanctions, and related court proceedings in United States District Court for the District of Columbia and the United States Court of Appeals for the D.C. Circuit. The Fokker case represented a landmark victory that established important constitutional limits on judicial review of DPAs.
https://en.wikipedia.org/wiki/Clifford_Chance