The Commissioner of Banks shall have the power and duty to issue subpoenas including subpoenas duces tecum, and compel attendance of witnesses, administer oaths, conduct hearings and transcribe testimony in making the investigations and conducting the hearings provided for herein or in the other discharge of his duties, and to give such publicity to his investigations and findings as he may deem best for the public interest. (1957, c. 1429, s. 5; 1961, c. 1053, s. 1.)