I think the crime in the misuse of bitcoin transactions is very difficult to detect early, in contrast to using other means, but at least the police can work with the bank on monitoring the flow of funds to where it will go. I think blockchain or bitcoin technology is the same as any other public facility, everyone has two possibilities in its use between good and evil. every criminal will continue to look for opportunities in narrow. at least we use trusted safeguards on accounts and assets we have from evil deeds or acts of break-ins.