 The grand jury did not hear from Minyard's experts, some witnesses who had been present, or the Department of Justice investigator who had spent a year on the case and amassed 50,000 pages of evidence.The two nurses who had been arrested with Pou testified in her defense, after being compelled to testify in return for not being charged themselves.The grand jury was sworn in on March 6, 2007, and prosecutors took the unusual step of having its meetings at an undisclosed location (i.e.