14-09-2012 List of prohibited investment sectors (Issued with Decree 108/2006/ND-CP of the Government dated 22 September 2006)  I. Projects which are detrimental to national defence and security and the public interest 1. Production and processing of drugs. 2. Investment in and commercial operation of secret investigation services violating the State interests, lawful rights and interests of organizations and individuals. 3. Investment in the field of private detective [services] and investigation. II. Projects which are detrimental to historical relics, culture, ethics and Vietnamese fine customs 4. Projects for construction within the premises of national historical relics or cultural [works]; projects affecting adversely the architecture and landscape of national historical relics or cultural [works]. 5.