Here is a link to Federal Regulations regarding prisoners: Title 45 PART 46 Subpart C—Additional Protections Pertaining to Biomedical and Behavioral Research Involving Prisoners as Subjects.
"A majority of the Board shall have no association with the prison(s) involved" (46.304b)
"At least one member of the Board shall be a prisoner, or a prisoner representative with appropriate background and experience" (46.304b)
"Adequate assurance exists that parole boards will not take into account a prisoner's participation in the research in making decisions regarding parole" (46.305a6)