Actually for Pakistan a police report is not required as it’s not officially recognized. You can refer to this link under Police, Court and Criminal Records https://travel.state.gov/content/travel/en/us-visas/Supplements/Supplements_by_Post/ISL-Islamabad.html
Please check the official link from NVC for pre-interview checklist https://travel.state.gov/content/travel/en/us-visas/Supplements/Supplements_by_Post/ISL-Islamabad.html
Hope this helps everyone.