Article 5 of Mexico’s law for federal government employees lists the posts that are de confianza. The list begins with “los que integran la planta de la Presidencia de la República” (those on the staff of the Presidency of the Republic). It includes “los Secretarios particulares de: Secretario, Sub-Secretario, Oficial Mayor y Director General” (the private secretaries of a minister, a deputy minister, a chief administrative officer and a director general).
It also includes the “manejo de fondos o valores” (handling of funds or valuables), when the post carries the legal power to dispose of them.