The paper explores the idea of public order as an affective atmosphere, upon which sovereignty persists. The problem with studying public order is that we only tend to notice it when it is disturbed by riots, protests, bar fights, harassment or intimidation. We tend not to notice what the police call ’normality’. However, the different affective constellations of normality are crucial to understand. The paper explores one significant attempt to differentiate the feelings of ‘normal’, undertaken by police forces in the UK, from the 1980s until the present day. The dynamics of ‘community tension monitoring' helps us understand the ways in which the affect atmospheres of public order are constructed as an object of police knowledge. It also opens a key question about liberal (individualistic) understandings of surveillance, and the capacity of human rights to effectively respond.