Also those who are informed of the demands of the times and known as God-fearing, brave and qualified for leadership. Also they must hold the religious office of source of imitation and be permitted to deliver independent judgments on general principles (fatwas). Chapter one of the constitution, where fundamental principles are expressed, states that continual ejtehad by qualified jurists is a principle in Islamic government. Likewise Article 5 expresses that an individual jurist who is endowed with all necessary qualities, or a council of jurists, has the right to rule in the Islamic republic as long as the Twelfth Imam remains in occultation. Also articles 57 and 110 show the exact meaning of the ruling jurist's power. According to article 57, the jurist has supervision over three other branches. According to article 110 these supervisory powers are as follow: