Dozens of police vans, buses, tow trucks and patrolmen have been posted on the court's premises, where scores of journalists are awaiting the suspects to be transported from their detention center. Guard rails have been readied, but the area has not yet been cordoned off.
Zaur Dadayev and Anzor Gubashev were detained early Saturday in connection with Nemtsov's assassination.
The spokesman added that Dadayev served as deputy commander of one of the Chechen Republic Ministry of Internal Affairs battalion units, while Gubashev worked in a private security firm in Moscow.
Nemtsov, 55, who once held high positions in the Russian government in the late 1990s, was fatally shot in central Moscow late last Friday.
Investigators have been pursuing several motives behind Nemtsov's murder, including possible links to the Ukrainian crisis, contract killing or business-related disputes.
