This paper asks what crime prevention looks like for residents in informal settlements in Khayelitsha, a black township on the outskirts of Cape Town. It engages with the idea of vigilantism and hybrid policing formations, analyzing the overlaps and intersections between legal community‐based crime prevention initiatives, and local ‘punitive practices’. The focus is not on the intensely violent spectacle of ‘mob justice’, where suspects are killed, but on the more ubiquitous, hybrid formations that also fall on the vigilantism continuum. These include coercive practices such as banishment, corporal punishment, retrieval of stolen goods by local policing formations and, trials conducted by street committees. The core argument I make is that, at times, particularly in poor areas where the state is absent and encourages citizens to take responsibility for their own crime prevention, the boundary between legality and coercive illegality collapses in on itself. Thus, the notion of voluntarism, that is so important to official discourse on crime, is particularly problematic when applied in poor communities with high rates of unemployment and high crime rates. As such, the state's encouraging of citizens to take responsibility for their own safety, alongside a punitive state discourse on crime and criminality, creates the space for illegal vigilante style actions to emerge in the shadow of legal crime prevention initiatives.