Which example of research with prisoners would be allowable under the regulations?

Research involving prisoners is allowed under specific regulations if it meets certain criteria, such as being directly related to the prisoners' conditions of incarceration or improving their health. For example, a study examining the effects of a new mental health treatment on incarcerated individuals would be permissible, provided it ensures informed consent, minimizes risk, and respects their autonomy. Additionally, the research must have a potential benefit for the prisoner population or contribute to the understanding of issues relevant to them.