Other biobanks may aggregate data and/or samples collected with contributor consent to research, but the consent process did not address return of IFs and IRRs. To determine potential returnability of IFs/IRRs, the biobank (ideally in coordination with the primary researcher) should examine the consent process used and consents obtained to determine whether these consents are adequate to allow broader return of IFs and IRRs than in the no-consent case above or, conversely, suggest that contributors were opting out of return. If the consent process and forms are simply silent on IFs/IRRs, return should be limited as in the no-consent case, unless the biobank (ideally in coordination with the primary researcher) finds it feasible and ethically appropriate to recontact the population of contributors or those with potentially returnable IFs or IRRs to determine whether they do actually consent to recontact and return.
