Jury selection is scheduled to begin today in the conspiracy trial involving KPMG that was once considered the largest criminal tax fraud case ever filed before a judge dismissed charges against more than a dozen former employees of the tax firm.

Three former KPMG executives and a lawyer still face conspiracy charges that they made up fake investment scenarios so clients could get tax deductions. The government claims the so-called tax shelters were marketed from 1997 until 2000 to wealthy individuals seeking to avoid paying taxes on significant earnings.