alt Hacker NewsGather evidence.
I assume that they have opened a formal investigation and are now going to the office to collect/perloin evidence before it's destroyed.
Most FAANG companies have training specifically for this. I assume X doesn't anymore, because they are cool and edgy, and staff training is for the woke.
If that training involves destroying evidence or withholding evidence from the prosecution, you are going to jail if you follow it.