Quinn Emanuel Urquhart & Sullivan’s Zurich office has been left with just one partner after a departure to German heavyweight firm Noerr.

Noerr has hired white collar crime partner Volker Rosengarten from Quinn Emanuel’s base, the firm confirmed on Wednesday. He will join the firm on August 1 after nine years at Quinn Emanuel, according to his LinkedIn profile. He joined the U.S. firm as a senior associate, having spent five years as an associate at Allen & Overy, his profile adds.