A: Verification of all scores by video is not necessarily the case. Per [Section 2.2.1](https://firstfrc.blob.core.windows.net/ ... Manual.pdf), "Submitted video *may* be used to check the accuracy of a reported score." (emphasis added for clarity). There is no published specification on how many videos HQ will review or how the videos for review will be selected.
(Asked by 1610 at Apr 9th 21)