Instead of thinking of ‘public order’ as the type of power that police deploy to manage disorder, this article suggests that we understand it as a set of background affects. The problem of analysing these affects is that (aside from moments of unrest) the majority of the populace is anaesthetised to them. Most people take the public feelings of calm predictability for granted. Crucially, however, the everyday management of public order does not anaesthetise everyone. It also produces ‘suspect populations’, who (...) must remain attentive to its low background hum. This article focuses on the US ‘colony within’ literature, developed by civil rights and black nationalist traditions from the late 1960s. The article suggests that this internal colony analysis contains a nuanced exploration of the spatialised affects of public order; the clouds of suspicion; the atmospheres of tension; and the police encounters that generate an affective substrate of relations. (shrink)