Really, they're just emphasizing in a relatively slick presentation the fact that the police can sort of sit in an air-conditioned office and remotely monitor someone without them having any idea that it's going on.
De understreger i virkeligheden, i en relativ smart præsentation, at politiet kan sidde i et kontor med air-condition og overvåge andre på afstand uden at de har nogen anelse  om hvad der foregår.