Over eight months, The Marshall Project, in collaboration with The New York Times, surveyed the departments of correction in all 50 states and found that 26 of them use private companies to transport parolees, fugitives and other prisoners. The investigation found a pattern of death and injury in an industry that operates with almost no government oversight. Many city and county governments, big and small, also use these companies. That means there’s still a lot of reporting that could be done to localize this story. If you want to know whether government agencies in your area use for-profit prisoner transport companies — and how often — The Marshall Project prepared a guide to reporting on this industry.