This REU Training Site has the mission to support formerly incarcerated undergraduate students in gaining research experience in computational biology, the principles of scientific thinking, and research scholarship. Eligible applicants include those who have US military service and students over 30 years of age, and all groups that have been historically excluded in STEM education and employment. Students accepted into the 9-week REU program will be assigned to and join a participating faculty mentor and their research group. REU interns will also be supported by Princeton University's Prison Teaching Initiative team for weekly meetings with larger groups of summer interns to discuss experience, reflections, or any topic of interest. The program also offers weekly meetings to discuss general topics of interest including quantitative thinking, the scientific method, research ethics, data analysis and interpretation, graphical analysis, oral and written presentations, resume building, and STEM careers and graduate study, as well as contemporary social issues related to science in general. REU interns will find that their first few weeks will be filled with intensive training in computational workshops, data organization, code documentation, scientific reasoning, and conduct. The 9-week summer program will be completed by the submission of formal written report on their research and an oral presentation.