@Sascha
Although I agree with what I believe your “intent” is regarding child pornography/pedophilia, there are some very real DANGERS, for non law enforcement person to get involved.
Think of it this way, you start finding child pornography, or even start conversing with a person you believe to be a pedophile in the hopes of tracking them down and exposing them to police.
This is a catch 22 though that could end up with you being arrested.
I say this because you have no clue if the person you are talking to is an under cover agent. So the conversation you have with this potential pedo means you have to act like one. So the agent has no clue you are trying to help, all he knows is you have just accessed say child pornography files (how do you know they are child porn unless you view the images?), or been discussing pedo desires etc.
Basically the point I am trying to make is that by trying to help police, you may just have made yourself a target! Keep in mind, child pornography, and pedo related issues are taken extremely seriously, many people have been “wrongly” caught in these snares, it can take a lot of money and many years to clear yourself with police, but even IF you manage to do that, will your public reputation ever recover?
The ONLY way anyone should even think about it, is only IF they have spoken with police, and have some sort of arrangement etc. Not talking about paid informant status. But some type of written document that clearly states you are say a “volunteer” pedo hunter, and maybe even written guidelines etc.
I do know there used to be, and assuming there still are some Non Profit orgs that do just this, if someone is serious, they should get involved with those orgs at the very least. They will know HOW to keep you safe.
Just do NOT do it on your own!