The riddle that the psychologist answers was first presented in Episode 2 ("The Consoler") of this season, Season 10.
When Rex Tamlyn shows Goren and Eames the hidden camera in his office, a painting done by character Dr. Maya Zhuang in Cadaver (2011) (Season 10, Episode 6) can be seen hanging on the wall.
Final line spoken in this episode, which makes it the final line spoken in the "Law and Order Criminal Intent" series: " Let's go..."
Last show of "Law & Order: Criminal Intent" series.
The New York tag number of the black SUV used by Goren & Eames is GRQ 1325.