Controlled delivery authorisation enables supervised movement of suspect consignments with required approvals, monitoring and foreign consultation. Controlled delivery permits supervised movement of a suspect consignment liable to confiscation where a proper officer applies in FORM-I and the specified authority may approve and authorise the operation, issue a FORM-II general authorisation to prevent interception by other enforcement agencies, permit non material affixation of marks or track and trace devices, require consultation with foreign competent authorities for consignments destined abroad, and mandate reporting on completion or termination with ensuing notification to foreign authorities when applicable.