Klempari defence

The Klempari Defence was a common ruse in interrogation. The subject would claim to be the last of their kind. However, it did not work on those who WERE or nearly the last of their kind, knowing how the feelings sits in one's heart. Alaya tried to use it on the Eleventh Doctor, but as he was the last of the Time Lords he knew she was lying. (TV: The Hungry Earth)