evidence: SECURITY POLICY FOR SENSITIVE COMPARTMENTED INFORMATION (SCI) WITHIN DEPARTMENT [...] 12 FAM 715 Sensitive compartmented information facility (scif) [...] g. Prior to granting access to non-SCI indoctrinated personnel, there should be an announcement or notification to all SCIF occupants that there will be "uncleared personnel" entering the facility. All classified material, operations and discussions must cease until the uncleared personnel have departed. This includes covering or securing all classified material, turning off all classified systems, and ceasing all classified conversations. Uncleared personnel entering the SCIF must be continuously escorted (close proximity, never left unattended in the facility). An SCI indoctrinated person from the bureau or post familiar with the security procedures of that SCIF must escort the uncleared person at all times to prevent a compromise. All visitors must be under the continuous escort ratio of one SCI indoctrinated person to two uncleared persons.