That is what some of the money launder don't know before embarking on such evil act, because many army forces are use to cryptocurrency and there is no way they can't trace your transaction and finish you out to face the law in the country. Cryptocurrency is a decentralized currency which is not control by the government, but government can make use of it which there is no way you can use it for illegals drugs and you will not be caught by the government agencies, because they monitor every transaction that enter people account and they know huge amount of funds that will enter your account you will be summon for investigation. Cryptocurrency is not made for illegal transactions, and if you involve in money laundry through cryptocurrency, there is no way you will be free from such activities because you will be caught and jail in the prison.