The Commissioner of Emergency Services and Public Protection shall have general jurisdiction of the affairs of the Division of State Police within the Department of Emergency Services and Public Protection and shall have all the powers and privileges conferred by statute upon a state policeman. He shall submit to the Governor an annual report, as provided in § 4-60, setting forth in detail the work of said division. Said commissioner shall prescribe rules for the government of the division and, in any investigation made by him relating to the personnel of the division, may administer oaths and summon witnesses and compel their attendance as provided by law for the attendance of witnesses at court.