The synagogue scenes in this episode were filmed in the Korean Philadelphia Presbyterian Church (which, despite its name, is in Los Angeles) because the building was built in 1909 as an Conservative Jewish synagogue called Temple Sinai, and it still contains much of its original Jewish-themed decoration, including a large Star-of-David stained-glass window.
This episode is a follow up to the Season Three premiere.
In the final showdown between Don Eppes and Buck Winters at the synagogue, Don tells Buck that he has 180 bullets targeted on him. In Judaism, the symbol Chai, meaning life, adds up to 18 and Jews use multiples of 18 when making donations.
AUSA Robin Brooks says that she'll hold a suspect responsible if his cohorts kill a federal officer, and should that happen she has 'good seats in the gallery watching them cook you.' California has never used an electric chair as a form of execution. At the time of broadcast, the only two approved forms were by lethal injection or the gas chamber, and the gas chamber required a special request. Federal cases were carried out according to the laws of the states in which the crime was committed or for specific crimes by lethal injection.