Adab Al-Qadi

Islamc Legal and Judicial System by Imam Khassaf
Classical Islamic legal system  implicitly distinguishes between those empowered to interpret the law (the legislative and judicial branches) and those empowered to make sure the law is being followed (the executive branch), this book therefore discusses the Islamic Legal and Judicial System in the light of the Qur'an and Sunnah .
Commentary By Al-Sadr Al-Shahid (d 536 AH)Rendered into English by Justice Dr Munir Ahmad Mughal
The Author Imam KhassafAhmad Abu Bakr al-Khassaf (From the Tribe of Shaiban) born around 181 AH and died in the year  261 AH (874/5AD) at the age of 80.Ibn Nadim sated thad Imam Khassaf was a Jurist, expert on the science of compulsory duties, a mathematician and well aware of the opinions and Ijtihad of Hanafi Jurists and enjoyed precedence on the court of Muhtadi Billah.His early education was at the hands of his father Umar bin Muhair who was a pupil of Imam Hasan  in Ziyad who in turn was a pupil of Imam Abu Hanifah.Imam Kafwi has counted Imam Khassaf in the second category of the fuquha and the mujtahidin and has named his category of the later period great Hanafis.
The Commentator As-Sadr Ash-Shahid, Hisam Umar Abdul Aziz Hisam ad-Din Abu Muhammad (also Abu hafs and Ibn Mazah) al Bukhari. He was  popularly known as As-Sadr Ash-Shahid, Hisam and Hisam Shahid. He was also sometimes  known by the title of Burhan al-A'immah, he was born on 483 AH (1090 AD).Qarshi says  that the author of Hidayah, has stated that I had learnt the theoretical sciences and ilm -al Fiqh from Hisam.As-Sadr Ash-Shahid, Hisam worked so hard that he excelled in the expertise of the school of thought of Imam Abu Hanifa. And had gained distinctive status among the men of knowledge of KhurasanHe was martyred in the battle of Qatwan in 536 AH (1141 AD)