In summary, even if Mo Tan had just casually flagged down a taxi and had himself taken here while holding a camera and rapping loudly about his adventure, theoretically, no one should really interfere.
Yet, he still kept his actions as covert as possible, and what's more, he even unusually 'armed' himself to a certain extent, giving off an impression that he was taking things too seriously.
But Mo Tan himself didn't see it that way; in fact, if he wasn't worried that certain 'possible traces' might be wiped out in a short period, he would've prepared even more thoroughly before coming over.
From the beginning, his concern wasn't about those conventional 'troubles,' but the 'truths that might be hidden underneath the surface.'