The Internet is filled with perverts and deviants and many of these degenerates use peer-to-peer networks to search for (and/or share) illicit images and videos of children. Federal agents, of course, spend much time monitoring these networks--like Gigatribe--looking for suspects possessing child pornography.
Some creeps, thankfully, make it easy for investigators to recognize their illegal intentions, as seen in the below excerpt from search warrant affidavit sworn by a Department of Homeland Security agent.
The DHS raid on a
residence was prompted by the probe target’s downloading of several videos depicting boys involved in explicit sexual activity with adult males. Texas