As student voice has become popularised as a school reform strategy, it has been critiqued as another instrumental strategy that schools may use to govern students' speech, bodies and subjectivities. What necessitates further analysis is the relation between student voice and regulatory modes of governance entwined with geopolitical attention to security in and beyond disciplinary institutions. In this article, ethnographic accounts from students at a comprehensive coeducational public secondary school where student voice was adopted as a school reform strategy are read with and through a policy context concerned with "security" (in particular, the Australian Government's "Schools Security Programme" and the "Living Safe Together" policy strategy), and Foucault's problematisations of 'security' in lectures published in "Security, Territory, Population." It is argued that student voice is entwined with contemporary security policies and practices; securing the material borders of the school is inextricable from limits placed on the discursive articulation of feeling in and beyond school gates.