Ellen Zimiles, a lawyer and expert on fraud and money laundering … suspects that financial crime would increase in a cashless society, since it’s easier to move electronic currency fast. … At the same time, Zimiles allows that crime in a fully electronic economy would prove easier to police. Unlike dollars, credit card sales and wire transfers leave a footprint; the inevitable audit trail could help law enforcement officials track down illegal actors. So while a cashless society might in fact promote black market business, that business would be more visible and more stoppable.
Previous thoughts on a world without cash here.
The Dish 