This course gives a general idea about treatises in Islamic Jurisprudence. Besides, it concentrates exclusively on studying and assessing in depth one issue or more of the subjects relating to treatises in Islamic Jurisprudence. For example, the rights of the individuals in the states, which includes the concept of Dhimmis and foreigner person and their rights in Islamic Jurisprudence. The contents of the territory of the state and the issues that are related to it, such as the coastal waters, the boarders of the territorial sea, the airspace of the territory, and the equality between the states. Another example is al-Jihad, its legitimacy, rulings, comparing between the principles of the Islamic war and international war, and the difference between al-Jihad, the invasion and occupation. Further examples are the reconciliation, truce, conventions and their rulings in Islamic Jurisprudence. However, the chosen subject(s) of the former should be studied in a comparative way in Islamic Jurisprudence, and western and international legal systems.