Object
Corwyn's Diagnostic Scanner
A physical, handheld medical device with a 'John Smith and Associates' label, used for real-time diagnostic probing and interrogation. Unlike X-rays, it is interactive (applied to patients' heads) and central to multiple plot developments (exposing Jamie’s identity, probing the Doctor’s memories).
5 appearances
Purpose
Diagnose physical conditions and probe memory for inconsistencies
Significance
Exposes false identities and amnesia deceptions, driving station suspicions of sabotage and forcing the Doctor's group into defensive isolation
Appearances in the Narrative
When this object appears and how it's used