If your country has accepted cryptocurrency, then if you are a victim of fraud in crypto you can report it to the police. Later the police will track
them down through the cyber crime division, this is what happened in my country. I don't know where your country from, because usually every
country has a special division to deal with crimes in the digital world, including fraud that occurs in the crypto world.
The question is, have someone in your country put into jail because of these activities.
I'm not sure how this cybercrime division makes a deal into this since crypto is fully anonymous and someone that has been accused can make a denial.
TBH, it is really hard to fight this scam thing in crypto. The only thing that could help us out from this is to be aware, we need to do research before investing. Because some projects aren't obvious a scam thing unlike the others, and some aren't the intent to scam but the project itself got failed to raise the money enough to run the project.