A growing scholarship on policing and security has given us valuable insights into the workings of private security firms, state police, and citizen-led policing organisations across Africa. In contrast, few have explored 'mob justice'-the policing performed by less organised, more transient formations of citizens. In academic and popular accounts, mobs are depicted as anonymous, sovereign entities, acting in a space that the state will not, or cannot, enter. Focusing on the township of KwaMashu in Durban, South Africa, I challenge this homogenous depiction. Although anonymous mobs punctuate the township's history, residents often find themselves within 'intimate crowds', navigating the ties that frequently bind them to their suspects, and negotiating a space in which they can act without fear of repercussion, legal or otherwise. The state police often play an important role in shaping the parameters of this policing, even when no case is formally opened. This reappraisal of policing formations consolidates and extends our understanding of statehood, society and sovereignty in postapartheid South Africa.