Investigating crime and corruption data

The amount of criminal money washing around the world each year is estimated at $2 trillion, and it affects everything from health and human rights to democracy and national security. Investigative stories have always led to cases involving corrupt activities and criminal conspiracies. But the nature of corrupt and criminal acts is changing quickly with technology and globalization. How can investigative journalists stay on top of techniques to follow and expose crime and corruption in the 21st Century?