The attendance supervisor, who is a full-time attendance supervisor performing no other duties, of any county, city and county, or school district in which any place of employment is situated, or the probation officer of the county, may at any time enter into any such place of employment for the purpose of examining permits to work or to employ of all minors employed in such place of employment, or for the purpose of investigating violations of the provisions of the Labor Code or of the provisions of this chapter, or Chapter 7 (commencing with Section 49100) of this part. If the attendance supervisor or probation officer is denied entrance to such place of employment, or if any violation of laws relating to the education of minors is found to exist, the attendance supervisor or probation officer shall report the denial of entrance or the violation to the Labor Commissioner. Such report shall be made within 48 hours and shall be in writing, setting forth the fact that he has good cause to believe that such laws are being violated in such place of employment and describing the nature of the violation.