The director of the Department of Labor and Industrial Relations (or his or her authorized representative) may investigate the wages of employees in any occupation (MO Rev. Stat. Sec. 290.510). Employers must:
• Keep for at least 3 years a record of the name, address and occupation of each employee, the rate of pay, the amount paid each pay period to each employee, the hours worked each day and each workweek by the employee;
• Make those records available to the director by appointment; and
• Provide a sworn statement of those records at the director's request (MO Rev. Stat. Sec. 290.520).
An employer that does not comply with those requirements, refuses to admit the director to the business, hinders the director's investigation, fails to keep the proper records, or pays employees less than the applicable rate, is guilty of a Class C misdemeanor. Additional violations include failing to meet posting requirements and discharging or discriminating against an employee who has lodged a wage complaint, has caused such a proceeding, or has testified or plans to testify at a wage proceeding (MO Rev. Stat. Sec. 290.525).