United States v. Siddiqui

Mohamed Siddiqui (defendant) was prosecuted for falsely claiming two scientists recommended his science-prize application, and the government introduced emails requesting those recommendations that used Siddiqui's known email address, referenced details about his application that only he was likely to know, and were signed with a nickname the scientists recognized; the same scientists also received phone calls from a caller identifying himself as Siddiqui, whose voice they recognized. Siddiqui was convicted and appealed, arguing the emails were never properly authenticated.