Item #: SCP-1531
Object Class: Safe
Special Containment Procedures: SCP-1531 is stored in Containment Vault 14 at Site-92. Disclosing the exact nature or effect of SCP-1531 to those lacking compartmentalized clearance 2/1531 (further referred to as CC2/1531) is strictly forbidden. At the moment, accepted testing subjects include any volunteers having CC2/1531, as well as D-class currently involved in testing, who are, for the duration, exempt from monthly termination. Requests involving introducing additional test subjects are to be made according to Protocol-1531-A.
Description: SCP-1531 is a standard issue polygraph of indeterminate make. Its metal casing possesses an etching in French that translates to "Themis is blind; who leads her to the light?", but visually the device is otherwise unremarkable. When a subject (a human being, age 12 or older) has its sensors affixed to their skin and is asked a question they are able to understand, the following happens:
- Subject answers the question, usually orally, but when that method is restricted, writing, gesticulating, or blinking in Morse code have been used. Subjects do not recall sensing compulsion or any outside influence to do so.
- SCP-1531 prints output consistent visually with standard polygraphs, but indicating the falsity of the answer.
SCP-1531 does not seem to rely on the subject's blood pressure, respiration, or skin conductivity, and instead determines whether the answer is factually true or false, by as of yet unknown means. To date, no way to deceive the object has been found, including sedatives, standard issue amnestics (with and without false memory implants), or memetic scramble.
Note from Head Researcher Steiner:
People don't seem to understand the sheer importance of what we are dealing with. No other interrogation method is even remotely as efficient. Far too often, the Foundation resorts to methods and substances that are more than questionable and less than reliable, and we are all aware that our enemies can do far worse. Imagine the potential security breach if it falls in the hands of someone who has an agent under Omega-level amnesiac and knows how to ask all the right questions. Even the knowledge of the possibility for existence of such an object is to be kept secret from anyone we do not completely trust. For that purpose, I insist on updating security measures.
Request granted. Protocol-1531-A updated. Additional screening for CC2/1531 is to be enacted directly under control of Site Director ██████████ or any personnel of equal or higher clearance. - O5-█
Addendum 1531: Protocol 1531-A
Additional researchers are only to be introduced to CC2/1531 by direct order of the O5. In the event that at least three personnel with CC2/1531 have reached consensus on necessity of introducing more test subjects or use of SCP-1531 for questioning, the following document needs to be first introduced to personnel possessing security clearance of 3 or higher, but not CC2/1531, without making any comments on the nature of the object or type of request or viewing the content of the letter.