I think no system or person can solve your headache thoroughly because the government did not want to participate in crypto, more precisely, they cannot investigate anything with such anonymity,
With most of the cryptos they can, although it is more time-consuming. Scammers can limit their chance to get detected by using mixers, exchanging tokens to privacy coins and transferring privacy coins in a privacy mode and then back to crypto, as well as often making otc transactions. And of course, avoiding KYC based exchanges/sometimes stealing identity.