Kimberley Peters leads a research group in Marine Governance at the Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), part of the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research. Within this interdisciplinary research centre Kim uses spatial frames for understanding how watery spaces are organised and managed, and takes a critical approach to interrogating operations of power at sea.Jennifer Turner leads the Cultural and Political Geography research group at Universität Trier and works predominantly on topics related to societal borders and boundaries. Jennifer first developed this interest in the context of the boundary between prison and society and now also focuses on non-prison spaces that may operate under similar conditions of spatial control and detriment, such as carceral seas.