Say there is a cryptocurrency whose issuers use electronic signatures issued by the government to prevent Sybil attacks (identity forging) to the voting mechanism when new currency units are created. The identity of currency issuers is pseudonymous to the general public but the issuers can be exactly identified by the government.
Lets assume the cryptocurrency is reliable and gets widely adopted among the public. After some time someone commits a crime using the cryptocurrency as a medium (maybe to pay for a murder etc.). Can the original currency issuers be judged for accessory (helping to commit crime) since they were the origin of the money? There may be many transactions from money creation to the final criminal. The transactions may either be pseudonymous (=traceable, like bitcoin) or fully anonymous. The type of transactions may be set before the cryptocurrency is created.