Exemption from additional duty removed for specific detection and mine search equipment, affecting defence and security imports. Exemption from the whole of the additional duty leviable under section 3 of the Customs Tariff Act shall not apply to the following goods: hand held metal detector; postal bomb detector; explosive container; portable or fixed door frame metal detector; deep search metal or mine detector; mine impactor; mine prodder (non magnetic); and under vehicle search mirrors. This proviso is inserted into Notification No.39/96 Customs by Notification No.30/2012 and removes prior exemption treatment for these items.