Attorney General of Virginia 's climate science investigation was a " Civil Investigative Demand " initiated in April 2010 by Virginia Attorney General Ken Cuccinelli for a wide range of records held by the University of Virginia related to five grant applications for research work by a leading climate scientist Michael E. Mann , who was an assistant professor at the university from 1999 to 2005 . The demand was issued under the Virginia Fraud Against Taxpayers Act in connection with claims by Cuccinnelli that Mann had possibly violated state fraud laws in relation to five research grants , by allegedly manipulating data . No evidence of wrongdoing was presented to support the claim . Mann 's earlier work had been targeted by climate change skeptics in the hockey stick controversy , and allegations against him were renewed in late 2009 in the Climatic Research Unit email controversy but found to be groundless in a series of investigations
Climatic Research Unit email controversy
Climatic Research Unit email controversy
Attorney General of Virginia's climate science investigation