In this chapter, we explore the dynamic roles of those who have influence over and shape the urban landscape and the implications of this for preventing crime in risky places. Our discussion encompasses an exploration of the interplay between the diverse elements of the urban planning process and the actors involved, highlighting how they influence each other. We draw a critical comparison between conventional situational crime prevention approaches and the broader application of systems thinking from the perspective of those who influence, manage, and shape risky places. This includes a consideration of the policy frameworks at both national and supra-national levels, with a specific focus on Sweden and the UK. The chapter culminates with a hypothetical example in which we apply systems thinking principles to offer insight into possible effective urban governance and crime prevention.