Complex sentence: This method was also employed against religious prisoners, including especially well-educated former atheists who adopted a religion; in such cases their religious faith was determined to be a form of mental illness that needed to be cured.
Split into simpler sentences: This method was also employed against religious prisoners and most especially against well-educated former atheists who adopted a religion. In such cases their religious faith was determined to be a form of mental illness that needed to be cured.