This technical manual provides evidence based guidance to strengthen road policing and enforcement (RPE) as a core pillar of effective road safety systems. It is designed for the wide range of stakeholders involved in RPE, including police and gendarmerie, the judiciary, policy makers, road safety professionals, nongovernmental organizations and the private sector. For the purposes of the manual, RPE is defined as a specialized policing function that applies intelligence led and evidence based strategies to enforce road safety legislation, deter high risk behaviours and deny criminal use of the road network. The manual demonstrates that, despite proven effectiveness, RPE remains seriously under resourced in many countries, particularly low and middle income countries. It addresses all major behavioural risk factors and all road users, and considers the full enforcement chain, from legislation and detection to penalties, data systems and governance. Structured in modular form, it supports capacity building, implementation, monitoring and continuous improvement to reduce road deaths and injuries while maintaining a clear focus on road safety outcomes.