Who is the accused?[PDF] difference in the accounts of the mihna found in the sunni and mu'atazili works. take it with a pinch of salt. wassalaam.
http://www.scribd.com/doc/19693175/Ahmed-Ibn-Hanbal-and-the-Mihna By Walter M. Patton, 1897. The author seems to have a better grasp of issues surrounding orthodoxy and heresy than many from the 'Islam-needs-reform' modernist camp. Wassalaam.