There&#x27;s broad protections for reporting crimes incidentally observed. It&#x27;s why parallel construction exists in the first place - to avoid the absurdity of happening to observe a murder, but then grant immunity to the victim due to how it was initially identified even if you later find the body, weapon, and DNA evidence.<p>In the case of Tor, when you go probing hidden services it would be <i>very</i> easy to find a lot of crime you&#x27;d definitely want to report if you knew who was doing it.