Appointment of Customs officers: Narcotics Control Bureau officers vested with Customs powers under section 4(1) of Customs Act. The Central Government, exercising powers under sub-section (1) of section 4 of the Customs Act, amends a prior customs notification by inserting clause 5 to expressly appoint all officers of the Narcotics Control Bureau as officers of Customs, thereby extending customs authority to those officers under the cited notification.