Cut to Calleigh taking her polygraph. The technician apparently likes her better than Speedle, since she's actually turned on the lights in the room. The woman asks, "Did you tell me your name was Calleigh Duquesne?" Calleigh rattles off, "Yes I did. But my nickname is Lamb Chop. But only my dad calls me that now." The technician gives her a thanks for sharing look and Calleigh babbles on, "Oh! I know. Okay, 'yes' or 'no' only. Fire away." We see Calleigh's readings, which are all over the place and presumably off -- again, not like we were ever given an explanation of what a baseline reading looks like, so we can hardly use this information to deduce anything on our own. The technician asks, "Did you consume any alcohol or drugs in an attempt to influence this exam?" Calleigh denies it with a wild, pop-eyed expression. The tech asks, "Did you process evidence for dispo day?" Calleigh most emphatically confirms that she did, and we see more nonsense scrawls on the polygraph. The tech asks, "Was that drug cocaine?" Calleigh happily agrees that it was and Jack looks up, suspicious.
Within seconds, Calleigh's sitting in an empty room, wondering what the hell is going on. Jack barges in and hands her a specimen cup, barking, "We need a sample." Calleigh replies, "Well, okay. Um. But I'm not going to do it in front of you." Heh.
More seconds elapse, and we're in Jack's office. Horatio comes in, saying, "You wanted to see me?" and Jack looks up to announce, "I think we found our mole. Calleigh Duquesne just tested positive for cocaine." Well, that explains her manic devotion to Horatio... Actually, she comes in, breathlessly saying, "Horatio, I don't know what happened. I promise you, I've never done any type of drug --" Horatio replies, "I know you didn't." Then he turns to Jack, angrily saying, "She will appeal." I'd commend Horatio for sticking by his employees, but we all know that he's doing so because it helps demonstrate his superior brainpower. Jack's all, "Then appeal. Until then, she's relieved of duty." Horatio begins his demonstration with, "You're making a mistake..." Jack fails to heed the warning signs, which prompts Horatio into a full-on display of his massive crime-solving power: "You guys couldn't find your ass with both hand. Now, you should be thanking her...If it's what I think, she just cracked the case. But I won't share any details with you, because only I can know what's going on, can't I?"