<p>A man tries a Research In Motion Ltd. (RIM) BlackBerry 10 smartphone prototype at the BlackBerry Jam Asia developer conference in Bangkok, Thailand.</p><p>Steve Zipperstein prosecuted failed savings-and-loan associations in the 1980s and investigated the government's siege of the Branch Davidian compound in Waco, Texas, in the '90s. Now the battle-hardened lawyer has joined Canadian smartphone maker BlackBerry to fight its critics.</p><p>Zipperstein, who turns 54 this month, was lured out of retirement in Santa Barbara, California, last year by an offer to become BlackBerry's chief legal officer. He joined the Waterloo, Ontario-based company in July to handle everything from patent disputes to privacy issues, and says his time as a Justice Department lawyer and federal prosecutor in Los Angeles will serve him well in defending BlackBerry's interests.</p><p>"I was really blessed to be able to combine jury trial courtroom experience with inside-the-Beltway Washington political policy experience," Zipperstein said in an interview.</p><p><a href="http://www.bloomberg.com/news/2013-06-07/blackberry-s-new-lawyer-is-getting-busy.html">Keep reading...</a></p>