 No one was exempt from the law, not even the Caliph himself.During early years of his rule he also acted as a chief justice of Madinah but later due to increasing burden of work he was left with no option but to assign his office to some other person, he accordingly appointed Abu Dardah, a well known Sahabi, though he didn't resign completely from the office and Abu Dardah only acted as his secondary.Umar was very keen in appointing qazis ("Islamic term for Chief Justice").