David Gopstein, a seven-year veteran of the U.S. Attorney’s Office for the Eastern District of New York, has joined New York boutique Kaplan Hecker & Fink as counsel in its white-collar, regulatory and litigation practice, the firm said Tuesday. 

Gopstein investigated, prosecuted and supervised a wide variety of high-profile cases involving securities fraud, wire fraud, health care fraud, digital assets and cybercrimes, the firm said.