U.K. firm Herbert Smith said Thursday that it has hired six Chadbourne & Parke commercial litigation partners in a move aimed at helping stock a New York office set to launch in September.

The group, led by Chadbourne’s former head of litigation, Thomas Riley, regularly handles disputes involving major tobacco companies, including London-based British American Tobacco (BAT). Joining Herbert Smith with Riley are four other New York–based partners: former Chadbourne product liability head Gregory Loss, David Wallace, Allison Alcasabas, and Joseph Falcone. The sixth partner arriving from Chadbourne, Philip Pfeffer, will continue to be based in London.