Cryptocurrency crimes continue to evolve as more and more criminals utilize bitcoin and altcoins to carry out their illicit activities. These crimes range from trafficking activities on the dark web to fraudulent activity and scams on regulated cryptocurrency exchanges. There has also been a tremendous uptick in criminals using NFT’s and staking platforms as a way to launder proceeds of criminal activity. The Advanced Cryptocurrency Investigations course is designed to prepare law enforcement officials to conduct these complex investigations. In-depth information will be presented on the most current cryptocurrency crimes with successful case studies to show how criminals can be positively identified and prosecuted. Coinjoins and mixing services are becoming increasingly popular with criminals to attempt to obfuscate their cryptocurrency. Information will be presented on the most common types of coinjoins and mixing services and techniques to identify when a criminal is using these services on the blockchain. Information will be presented on advanced heuristics to de-mix the addresses and successfully track the transactions.