Interpol is the world's largest international police organization and attempts to coordinate police forces between countries to fight cross-border crime. Their website has a lot of interesting information on crime related to art theft, drug trafficking, financial fraud, and corruption.

You can also report a crime:
http://www.interpol.int/Public/contact.asp

Apply for a job
http://www.interpol.int/Public/Icpo/Recruitment/default.asp

View stolen works of art: http://www.interpol.int/Public/WorkOfArt/Search/RecentThefts.asp

(which you can apparently also buy on DVD) http://www.interpol.int/public/WorkOfArt/CDrom/Default.asp