Intelligence Firewall, a new secure search capability within Memex's Intelligence Engine, allows a person running a search query to find matches, but may limit the amount of detail that is returned if access requires a security clearance or if the data has been marked as sensitive. This capability strengthens search results by allowing all data to be searchable, while restricting the detail that is exposed. In law enforcement environments, there is often good intelligence arising from protected sources such as informants, yet the person who collects the data needs to shield the identity of the informant and may also need to restrict access to the intelligence. Using Memex's Intelligence Firewall feature, the analyst conducting the search would find that there is critical information available for a specific query and receive a message instructing him to contact the lead investigator.
