Coincidentally there was already a post here about this but I ve just edited all info on the CSI pages referring to Cyber taking place in Quantico Krummy and Elijah explicitly stated that they were based out of Washington in Hack E R Krumitz I thought Avery grounded you Elijah We all know Baltimore is just a suburb of the District before this there has been an onscreen reference to them being in Washington during every episode as well as the Lincoln Memorial being featured in episode 1 and the Washington Monument in almost every episode I m just posting this here in case anyone is still adamant it s set in Quantico