Preventive customs control over illegally imported goods through notification-based specification of goods classes and special measures. The Central Government may, by notification in the Official Gazette, specify a class or description of goods for special control when it considers that the magnitude of their illegal import makes such action expedient in the public interest. The power is directed to measures for checking the illegal import, circulation or disposal of the goods, and for facilitating their detection. The provision is a preventive customs mechanism aimed at goods associated with unlawful import activity.