Outline the process of peer review.
The report is independently scrutinised by experts in a similar field.
They will consider how appropriate the methods were, how valid the findings are, whether any errors have been made and how original and relevant the study is.
Based on their review, they can accept the report as it is, accept it as long as the researcher makes some minor adjustments, suggest the author makes more substantial revisions and re-submits the report for another peer review, or reject the report without the possibility of re-submission.