Upon the day set for hearing said petition or a day to which same may be continued by the court or chancellor, all parties interested may appear and contest the same; and if the contestants file a petition signed by one third of the landowners in such proposed district owning more than one half of the lands in said district, then said original petition shall be dismissed. The court shall first determine whether the petition filed by the contestants is signed by persons of lawful age who represent one third of the landowners in such proposed district owning more than one half of the lands in said district. If it is so signed, the court or chancellor shall enter an order dismissing the original petition. If it is not so signed, then at the first hearing on the original petition the only questions to be passed upon by the court shall be: first, whether the petition is signed by the number of qualified signers required by this chapter; second, whether the required notices by publications, mail, and posting have been given; third, whether the lands of said proposed drainage district or any part thereof required a combined system of drainage; fourth, whether the creation of the district would meet a public necessity and would be conducive to the public welfare. If the court or chancellor shall find in favor of the petitioners upon all of these points, he shall enter an order to that effect, refer the said petition to the drainage commissioners of said county for proceedings thereon in compliance with this chapter, and fix a day upon which such commissioners shall meet to consider the same, and investigate the lands in the said proposed drainage district. All deeds made for the purpose of defeating or aiding the prayer of such petition, not made in good faith and for a valuable consideration, shall be taken and held to be in fraud of the provisions of this chapter; and the holders thereof shall not be considered as owners thereof in construing the provisions hereof. Upon said first hearing if the court or chancellor shall find that said petition is not signed as required by this chapter or that notices have not been given as required thereby, the court or chancellor may allow the petitioners to amend the same or may continue said petition for further hearing, with leave to the petitioners to give proper affidavit of any two or more signers of the said petition that they have examined said petition, that they are acquainted with the land and locality of such proposed district, and that such petition is signed by the number of landowners required by this chapter who are of lawful age. Such affidavit may be taken by the court or chancellor as prima facie evidence of the facts therein stated.

If the court or chancellor shall find against the petitioners upon any one or more of the points above provided, then said petition shall be dismissed; and in any dismissal under this section, all costs shall be adjudged against the petitioners for the organization of said proposed drainage district.