This course studies in a comparative, analytical, and deep way some issues relating to the proof methods from an Islamic legal perspective. For example, it examines witnessing; the witnessing of men, the witnessing of both of men and women, and the witnessing of women only. Besides, it covers several subjects belonging to this theme, such as confession, al-Qara’in i.e. the presumptions, the oath, the knowledge of the judge, the written documents and so on.