At the end of last week, the International Narcotics Control Board released a report expressing concern that Mexico's drug cartels were using bitcoin.
The researchers found that criminal communities from Jalisco and Sinaloa are increasingly using cryptocurrency in their financial schemes.
Transactions are carried out with small amounts of BTC to complicate control by law enforcement agencies. BTC is then used for international transfers between cartel members.
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Through bitcoin, such structures annually launder about $25 billion, according to the report of the committee.
Analysts also point to the use of cryptocurrencies in other criminal businesses, for example, trafficking in weapons or people. Bitcoin appears in many schemes for financing such activities.
US Drug Enforcement Administration spokesman Raul del Campo recently told reporters that countries need to join forces to fight the criminal use of digital currencies. The world needs uniform standards for the control and suppression of suspicious transactions that violate anti-money laundering laws.