There is established within the department the division of audits, under the supervision of an unclassified director of audits who shall be responsible for the following functions, in accordance with applicable laws:
I. Classifying for possible audit all returns, reports, or other documentation submitted by taxpayers or their authorized representatives for all taxes administered by the department.
II. Office and field examinations on all returns, reports or other documentation submitted by taxpayers or their authorized representatives for all taxes administered by the department.
III. [Repealed.]