The director, or an authorized representative of the director, shall
(1) investigate and ascertain the wages and related conditions and standards of employment of any employee in the state;
(2) enter the place of business or employment of an employer at reasonable times for the purpose of inspecting payroll records that relate to the question of wages paid or hours worked;
(3) require and subpoena from an employer a statement in writing, when the director or the representative considers it necessary, of hours worked by and the wages paid to a person in the employ of the employer, and the commissioner may require the employer to make the statement under oath;
(4) question an employee in a place of employment during work hours with respect to the wages paid and the hours worked by the employees;
(5) compel the attendance of witnesses and the production of books, papers, and documents by subpoena when necessary for the purpose of a hearing or investigation provided for in AS 23.10.050 - 23.10.150.