This was part three of a two-night, three part crossover with Nobody Touches Anything (2014) (Chicago Fire) and Chicago Crossover (2014) (Law & Order: Special Victims Unit).
Small universe: Jon Seda plays Chicago PD Detective Dawson. Here he works with NYPD detectives from Law & Order: Special Victims Unit (1999). That unit a year earlier was supervised by Richard Belzer as Sgt. John Munch, who co-starred with Seda as the same character when both played police detectives in Baltimore on Homicide: Life on the Street (1993). Up to this point in time, Munch had last appeared on SVU the same year in May.