This artist photographs to change lives. Her survey of a detention facility serves as a case study for broader questions about the challenges of confinement. It was important to her that those held there play an active part in recording their own experiences: their handling of pinhole boxes transforms ambient light into photographic traces as surprising as they are moving. The harshness of concrete as a barrier to the tradition of prison graffiti challenged her to invent an equivalent means of expression, relaying outside the testimonies gathered within, harnessing the genre of portraiture to solicit empathy.