Well, what about my computer, will you deliver it soon, or should I come get it myself? mmmm? I can't hear you
If you get tagged as suspicious and won't record your POV for whatever reason you won't be allowed to play this tournament, very simple.
Compromise,
Instead of recording, can't you type in admin chat "Player send a screenshot of your pov including this message" before a round starts. Purple chat isn't up for long so gives little time to fake povs. Could ask for a screenshot of them pressing tab as well.
Turn off cheats
Take screenshot
Turn on cheats
Play
Admin chat in the middle of the screen is up for around 5 seconds. Admin chat appears in regular chat for 10 seconds. Can you really turn them off and hide everything in that short period of time?
Could alternatively say the screenshot must be of admin chat in middle of the screen.