From L’Oeil de la Photographie:
Established in 1798, the duties of the U.S. Marshals include apprehending fugitives, transporting and housing prisoners, and protecting witnesses and federal judges. Finke gained unprecedented access to document the Marshals in 2010 after re-connecting with a childhood friend—Deputy U.S. Marshal Cameron Welch. It did not take long at all for Finke to find himself in the thick of things. His first ride-along included a 120-mph pursuit of an escaped convict in Huntsville, Texas.