Continuity mistake: At the end of the previous episode, an unknown someone can be seen circling Dylan's face on a picture of her and Katherine in the newspaper reporting on the Founder's Ball. In this episode, we see the cop who pulled Dylan over get back in his truck where a copy of the newspaper sits on the passenger seat. This time, both Dylan and Katherine are circled.
Desperate Housewives (2004)
1 mistake in Hello, Little Girl - chronological order
Bree Van De Kamp: It's the age-old question, isn't it? How much do we really want to know about our neighbours?
Trivia: Across Season 4: Two Lois Lanes appear together in this season: Teri Hatcher played Lois Lane in The Adventures of Lois and Clark and Dana Delaney voiced Lois Lane in Superman: The Animated Series and its follow-ups.
More questions & answers from Desperate Housewives
Answer: He was investigating the lead not the case.