Lt. Chance comments, "Some unpleasant threats were made."
Lt. Devereaux replies haughtily, "Redundant! All threats are unpleasant."
A scene or two later, Lt. Devereaux has this line, concerning suspect Henry Waverly: "Used to be a former student." Since she just corrected Lt Chance for being redundant, it is strange that she is being redundant by using both 'used to be' and 'former' in the sentence.