The officer in Evidence Control who shows Daniels Marlo's cellphone is Augustus Polk, the "hump" detective from the Property Unit who worked briefly in the Barksdale and Sobotka details and took sick leave for his alcohol abuse.
The TV content Dukie is watching and then describes to Mike when he comes home is the Showtime series Dexter.
At the Baltimore Sun, when CE Gus Haynes asks ME Steven Luxenberg to help him to contact The Walter Reed Medical Center, Steven mentions the articles published by The Washington Post in 2007. It refers to a series of allegations of unsatisfactory conditions, treatment of patients, and management at the Walter Reed Army Medical Center (WRAMC) in Washington, D.C.