Federal Magistrate Judge John Facciola was introduced during a 2008 conference as the “Italian Stallion of e-discovery.” Long at the forefront on technology and the law, Facciola is back in the national spotlight over the scope of prosecutors’ power to access elec­tronically stored information.

Since March, Facciola, appointed to the U.S. District Court for the District of Columbia in 1997, has denied search warrants for electronic information at least five times. He has criticized prosecutors’ “overbroad” requests for access to e-mail and failure to explain how they would constitutionally search information on cellphones and other electronic devices.