Atris led the trial of the Jedi Exile in 310 BTC because of an issue of Jedi aggression in battle. Of the 12 year span between the Mandalorian Wars and the First Jedi Purge, Atris had convoluted emotions and thoughts of why the Jedi Exile did what she did.
Atris caused many of the few Jedi to die on Katarr from the hands of Darth Nihilus. Atris then fell to the dark side and then dueled the Exile on Telos lV but was defeated and redeemed by the Exile shortly before the battle for the Citadel Station. She was awaiting trial for her actions. She was found to be exiled for 10 years before forgiveness.