65 ILCS 5/11-4-7
The superintendent of the house of correction shall have entire control and management of all its concerns, subject to the authority established by law, and the rules and regulations adopted for its government. The superintendent shall obey and carry out all written orders and instructions of the inspectors not inconsistent with the laws, rules and regulations relating to the government of the institution. The superintendent shall be appointed by the mayor by and with the consent of the board of inspectors, and shall hold his office for 4 years and until his successor is duly appointed and has qualified, but he may be removed by the inspectors at any time, when in their judgment it shall be advisable. He shall be responsible for the manner in which the house of correction is managed and conducted. He shall reside at the house of correction, devote all his time and attention to the business thereof, and visit and examine into the condition and management of every department thereof and of each prisoner therein confined, daily. The superintendent shall exercise a general supervision and direction in regard to the discipline, police and business of the house of correction. The deputy superintendent of the house of correction shall have and exercise the powers of the superintendent in his absence, so far as relates to the discipline thereof and the safe keeping of prisoners.
65 ILCS 5/11-4-7