Orrick, Herrington & Sutcliffe has hired Charles Allen as litigation and dispute resolution partner in Hong Kong from Sidley Austin, where he led the firm’s commercial litigation practice.

Allen’s practice focuses on commercial litigation, arbitration and investigations. He has represented clients on contractual and tortious disputes, as well as regulatory and other investigations. Allen joined Sidley in 2002 from Simmons & Simmons and became a partner in 2007.

Orrick’s global litigation practice includes 450 lawyers, but Allen is the only litigation partner in the Hong Kong office. In February last year, the firm lost litigator Andrew Dale to Ropes & Gray.