I have add a backup folder In File If You Face Any error Then Replace Origianl Files In Folder so if you lose any police textures you can replace them with the original ones.
Installation Instructions:
1) Launch OpenIV and click "Edit Mode"
2) Go to update > x64 > dlcpacks > patchday9ng > dlc.rpf > x64 > models > cdimages > patchday9ng.rpf and replace the police files with the ones provided in the ZIP