What legal provisions did the employer violate when recruiting child labor?

It is illegal to employ child labor. According to the Regulations on Prohibiting the Use of Child Labour, if an employer uses child labour, the administrative department of labor and social security will impose a fine of 5,000 yuan per month for each child. Child labor refers to employment under the age of 16, and no enterprise, institution or individual industrial and commercial household may employ minors under the age of 16. Units or individuals who introduce 16 minors to employment will be punished according to the standard of a fine of 5,000 yuan per introducer. Kidnapping and abducting child labor, forcing child labor, using child labor to engage in high altitude, underground, radioactive, highly toxic, flammable and explosive labor with the fourth level of physical labor intensity stipulated by the state, using child labor under the age of 14, or causing child labor death or serious disability, criminal responsibility shall be investigated according to law. Article 6 of the Regulations on Prohibiting the Use of Child Labour stipulates that if an employer uses child labour, the administrative department of labor and social security shall impose a fine of 5,000 yuan per month for each child labour; Whoever uses child workers in workplaces where toxic substances are used shall be given a heavier punishment according to the fine range stipulated in the Regulations on Labor Protection in Workplaces where toxic substances are used, or according to the standard of a fine of 5,000 yuan per child. The administrative department of labor and social security shall also order the employing unit to send the child workers back to their parents or other guardians within a time limit, and all the transportation and accommodation expenses required shall be borne by the employing unit.