Key factors in this conclusion included the difficulty in proving Biden had the specific willful intent required by law for a conviction. The report noted the possibility of "innocent explanations," such as documents being packed unintentionally or Biden forgetting he had them. The investigation also considered how Biden's memory might be perceived by a jury, potentially leading to reasonable doubt about his intent to break the law. Additionally, Biden's cooperation with the investigation, in contrast to other cases, suggested a potential "innocent mistake" rather than an intent to act unlawfully.