Inverse surveillance, sometimes known by the neologism "hierarchical sousveillance" ("seeing from below" hierarchically), refers to the recording or monitoring of real or apparent authority figures by others, particularly those who are generally the subject of surveillance. Steve Mann, who coined the term, describes it as "watchful vigilance from underneath".
Inverse surveillance is a type of sousveillance. The more general concept of sousveillance goes beyond just inverse surveillance and the associated 20th Century political "us versus them" framework for citizens to photograph police, shoppers to photograph shopkeepers, or passengers to photograph taxicab drivers (Rheingold notes that it's much like the pedestrian-driver concept, e.g. these are roles that many of us take both sides of, from time-to-time).