When it comes to the relationship between social policy and penal policy, existing scholarship often focuses on the penal–welfare tradeoff, according to which countries with large and generous welfare states tend to have lower incarceration rates and less harsh treatment of offenders. We know much less about the relationship between the punitive turn in criminal justice and the use of discipline within social policy. Has there been a parallel trend of law-and-order policies and stricter benefit conditionality, a kind of ‘criminalization’ of welfare beneficiaries, as critical scholarship suggests? We test this idea for the first time with quantitative data, using public spending on public order and safety and unemployment benefit conditionality data for 18 rich democracies between 1990 and 2012, that is, the period when a punitive turn as well as the rise of activation and workfare is said to have taken place. Contrary to the critical literature, we do not find evidence of parallel trends toward more discipline in both areas, but rather a negative relationship of ‘communicating vessels’, where a greater use of disciplinary tools in social policy is associated with stagnating or even shrinking spending on police and prisons. Moreover, this pattern tends to emerge under conditions of higher welfare state generosity. These findings have important implications about the role of state ‘discipline’ in contemporary policymaking.