 Whenever a governor was appointed by Umar, a man was sent with him that would read publicly his powers and jurisdictions.During the reign of Caliph Abu Bakr, the state was economically weak, while during Umar’s reign because of increase in revenues and other sources of income through extraction of the wealth from neighboring conquered lands, the state of Medina was on its way to economic prosperity.Hence Umar felt it necessary that the officers be treated in strict way as to prevent the possible greed of money that may lead them to corruption.