Pretended to be Chief Criminal Investigator for IRS and calling from Washington, DC. stating this was final notice to collect error in tax from audit of 2008-2013 completed Aug of 2014. Owed balance of $1986.72. Settle in court or out. Had the authority to place lien on properties and freeze all money accounts. Serving me with warranty tomorrow at my address. Will provide all paperwork to show debt and account code for transfer of amount owed or be arrested for defrauding the government. I DID NOT give any personal information without proof of the debt.