If after investigation the commission finds that in any occupation, trade, or industry, the wages paid to employees may be inadequate to supply the cost of proper living, or that the hours or conditions of labor may be prejudicial to the health, morals, or welfare of employees, the commission shall select a wage board to consider any of such matters and transmit to such wage board the information supporting its findings gathered in the investigation. Such investigation shall include at least one public hearing.
Ca. Lab. Code § 1178