A T-Probe is a torture/interrogation device used by the Honored Matres against Miles Teg. The device was designed to read the Genetic memory of the subject. It was this device that caused Teg's wild Atreides genes to kick in an allowed him to escape Giedi Prime. It is described a non-Ixian interrogation device brought by the Honored Matres from The Scattering. The probe builds a 'digital framework' of the person which can be subjected to stimuli, and will respond as the person would. The T-Probe also causes massive, virtually unendurable pain in a living subject.