According to sharia, to be found guilty the accused must at the time of apostasizing be exercising free will, an adult, and of sound mind, and have refused to repent when given a time period to do so (not all schools include this last requirement). The free will requirement excludes from judgement those who embraced Islam under conditions of duress and then went back to their old religion, or Muslims who converted to another religion involuntarily, either force or as concealment out of fear of persecution or during war (Taqiyya or Kitman). Nor are those who mistreat a copy of a Quran or do not pray Salat out of ignorance and misunderstanding (provided they do not continue to do so after being warned not to).