If, upon the hearing of the petition for exclusion of lands, no evidence or proofs in support thereof are introduced, or if the evidence fails to sustain the petition, or if the board deems it not for the best interest of the district that the lands, or some portion thereof, mentioned in the petition, should be excluded from the district, the board shall order that the petition be denied as to such lands.
(Added by Stats. 1965, Ch. 75.)