- Adult Fear: Pregnant Harriet Sims accidentally gets to see crime scene photos of the corpse of a brutally murdered girl and freaks out. A few episodes later in "The Adversaries" she sees the dead girls identical twin sister and gets flashbacks of the photos.
- Bilingual Backfire: In "Nobody's Child", Harm and Mac questions a convicted child molester who had violated the terms of his parole and watched school children from his car and said he listened to "Als ich bei meinen Schaffen wacht" in his car, which Mac correctly translates from German to "As I watch over my sheep" and by doing so really gets his attention.
- Jack Bauer Interrogation Technique: When questioning a convicted child molester Harm gets dangerously close to this.
- My God, What Have I Done?: Harriet is so disturbed by the sight of Annie's crime scene photos that she audibly shrieks in horror. Then, she hauls off and punches Harm for looking at them, knocking him off his feet, and gives him a chewing out for looking at something so morbid, especially when there's an expectant mother in the building. Later, she realizes she got carried away with her anger and goes as far as to ask for a resignation as penance, but she's forgiven because she meant no true harm to Harm.
- Pædo Hunt: There are initially few clues as to who the killer of an unidentified African-American girl on a naval facility is. Harm's initial hunch is to look after convicted pedophiles. It turns out that the killer wasn't a pedophile: but a pedophile was able to give valuable information that solved the identity puzzle because he had violated terms of his parole by watching children.
As you were...