This chapter explores the leadership philosophy and professional legacy of Tor-Aksel Busch, who served as Norway’s Director of Public Prosecutions from 1997 to 2019. With a legal career spanning over four decades, Busch shaped the Norwegian prosecution authority through an unwavering commitment to the liberal rule of law, prosecutorial independence, and high professional standards. He views the prosecution and police as vital institutions within the welfare state and democracy, emphasizing their social mission and constitutional responsibilities. Busch’s leadership style is grounded in mission-driven principles, professional competence, and the balance between governance and inspiration. He highlights the critical need for leaders in law enforcement to possess domain expertise, stressing that legitimacy stems not only from position but also from substantive knowledge. Transparency, trust, and public accountability are recurrent themes in his leadership ethos, as is the importance of continuous institutional learning and quality assurance. The chapter also addresses structural and cultural changes in the police and prosecution services, including shifts in transparency, gender inclusion, leadership structures, and workplace expectations. Busch underscores the growing complexity of societal conditions—globalization, migration, political instability—and their implications for legal institutions. He advocates for thoughtful leadership that adapts to evolving demands without sacrificing core values. Through his reflections on both successes and failures, Busch provides a nuanced understanding of senior executive leadership in law enforcement, shaped by legal rigor, ethical clarity, and societal awareness.