This is a scene from the episode "The Whole Truth." It centers around a widow accused of killing her wealthy husband.
Cal takes to the stand in the episode "The Whole Truth." He testifies at the trial of a woman accused of killing her husband.
Try to resist, Cal! In this scene from Lie to Me, a character played by Melissa George comes on to the show's hero.

Lie to Me Season 2 Episode 13 Quotes

Clara Musso: There seems to be a lot of chemistry there with your ex-wife
Cal Lightman: Yeah, well there's a lot of chemistry in Chernobyl.

Cal Lightman: Nobody can tell the whole truth, it's subjective, and passes through our own filters.
Judge Quinn: How about you promise to be honest to the best of your ability?
Cal Lightman: Now you're talking!