No person shall transport feeder or breeding swine into the State without first having applied for and received a permit from the Department. The Department, when satisfied that there is no reasonable ground to suspect the existence of any contagious or infectious disease affecting such swine, or that the applicant for the permit has not been guilty of violations of this Act, may issue the requested permit. The Department may, when it is determined to be in the best interest of the livestock industry of the State, refuse to issue entry permits.