Jorge Zamacona wrote two Law & Order episodes. He wrote the sixth season episode "Charm City", and the eighth season episode "Baby, It's You". These two episodes crossed over with the television series Homicide: Life on the Street. He also wrote the two related crossover episodes from H:LOTS: "For God and Country" and "Baby, It's You (2)".
Besides the two crossover episodes from H:LOTS, Zamacona also wrote another ten episodes. He also worked as a producer and story editor on the series.
Zamacona worked on several episodes from other television series, including Millennium, Third Watch, Witchblade, 10-8: Officers on Duty, and Wanted.
Zamacona worked as a supervising producer on the television series Oz. During his time there he worked with actor Christopher Meloni, who played inmate Chris Keller on that series.