The Indiana Department of Revenue (DOR) and Commissioner Adam Krupp warn customers to always be leery of any suspicious phone calls or emails that may be tax scams. Over the last week, DOR has received calls from concerned Hoosiers who have been contacted by an organization identifying themselves as a “crime investigation unit” within the Internal Revenue Service (IRS) and the state’s revenue agency. Hoosiers have been threatened with arrest warrants and told to provide Social Security numbers, driver’s license numbers and/or bank account information in exchange for no further legal action. Even during special circumstances, taxpayers will usually receive several letters—or notices—from the tax agency in the mail before an in-person visit.