Downing Said to Resign From Justice Department Tax Post

Kevin Downing, the Justice Department prosecutor who directed the U.S. crackdown on offshore tax evasion, resigned effective June 4, according to a person familiar with the matter.

Downing, 46, was the lead prosecutor in the U.S. probe of UBS AG, Switzerland’s largest bank. In February 2009, UBS avoided prosecution by paying $780 million, admitting it helped thousands of Americans evade taxes and turning over the names of 250 American clients to U.S. authorities. UBS later revealed another 4,450 accounts.