Before you go around giving advice to others, you'd be well advised to make sure you can find out the truth for yourself. The tools of an investigator are simple, as long as you have elementary powers of deduction. You don't worry about silliness like Friday the 13th when you've got logic on your side!
Wondrous item, uncommon (requires attunement)
This tweed hunter’s cap is favored those who seek to the truth no matter how hidden it may be. The wearer of the detective’s cap gains advantage on Intelligence (Investigation) and Wisdom (Insight) checks and can use Investigation checks rather than Survival checks to track a creature (which must have Intelligence 5 or higher) within a city or town.