Is there any posible way to filter who are going to make an ICO to be able to know if there are scam or not? And is there any bodies of law that would be able to punish them once they turn into scam. And what punishment should be given upon committing such the crime?
There is no law created to punish these people for commiting this scams because their identities are often fake. The only thing we can do about it is we should be more careful, be vigilant and we check thoroughly the ICO's legitimacy first before being part of it.