Erla Lissa was a female Bith who worked in Security Ministry of Anarmar and Duvar Enego's office for several years. She was his personal assistant while he was the Security Minister, but she remained at this post even when he became the Prime Minister of Anarmar in 21 BBY and the President of the Senb'An'Tiin Federation later. She was more than assistant; she was a secret agent of Duvar, that he used for spying on his colleagues and political opponents. Erla could hear higher frequencies, so he used her talent to triangulate signals that were sent through electronic devices.