ABSTRACT This paper explores the ethical complexities inherent in researching marginalised voices within Central American prisons, specifically focusing on women and gender-diverse individuals presumed to be affiliated with armed groups. Drawing on extensive fieldwork conducted across Central America, the paper explores the challenges researchers face when navigating carceral spaces dominated by gang violence and informal governance. It highlights the need for addressing the ethical dilemmas that arise when engaging with incarcerated individuals. By highlighting the importance of reflexivity, recognition of gatekeepers, ensuring the safety of incarcerated individuals, sensitivity to vulnerabilities and diversity, and fostering empathy, the authors contribute to the broader discourse on research ethics and methodology in high-risk environments. This study casts a spotlight on the ethics of researching prisons in Central America, underscoring the urgency of ethical research practices that prioritise the dignity, agency, and humanity of research subjects.