Even though BTC transactions can be tracked closely  there are a lot of cyber miscreants who have laundered money through bitcoin. Last year the DEA of the USA released a report stating that BTC was being used for money laundering activities related to trade. Even recently a study by CipherTrace has revealed that crypto users rely on money laundering mixing services to convert their illegal money into clean money. So there’s no denying that bitcoin can’t be used for such purposes. To keep this issue in check governments and regulators need to come up with stricter AML provisions.