Q. Where can I find statistics on illegal trade such as pirated merchandise, counterfeit consumer goods or "knockoffs?"

Here are some places to start:

• AU Subject Guide for Statistical Information, particularly the Criminal Justice (US) or Criminal Justice-International sections
• Architecture of Illegal Markets: Towards an Economic Sociology of Illegality in the Economy by Jens Beckert and Matias Dewey 
• Trade in Counterfeit and Pirated Goods: Mapping the Economic Impact - a report by the Organization for Economic Cooperation and Development and the European Union Intellectual Property Office 
• Counterfeiting & Piracy section of the International Chamber of Commerce (ICC)
• Havoscope (note that this site is no longer being updated but they have maintained their archive) 
• Javelin Strategy & Research Fraud Management Research (fraud reports behind a paywall but you can purchase access)
• Both the Country Reports and the Country Rankings Subject Guides have tabs for Corruption that list multiple sources. 
• The Sourcebook of Criminal Statistics at the University of Albany maintains a Forgery and Counterfeiting page.
• Organized Crime & Corruption Reporting Project (OCCRP ), a source for investigative journalists exposes crime and corruption networks, may be useful

If you would like further assistance, please Ask-A-Librarian.