“…Variously labelled ‘spatial discontinuities’ (Harris, 2014), ‘neighbourhood boundaries’ (Legewie and Schaeffer, 2016) and ‘social frontiers’ (Dean et al, 2019; Křížková et al, 2021; Piekut et al, 2019; Staples et al, 2023), there is growing empirical evidence in the urban studies, human geography and sociology literatures that these ‘cliff edges’ not only exist not only exist between races, self-reported ethnicities and countries of birth (Dean et al, 2019; Legewie and Schaeffer, 2016) but also have potentially important impacts (e.g. on crime).…”