How Are Criminal Tax Investigations Initiated?

The Internal Revenue Service Criminal Investigation Division conducts criminal investigations regarding alleged violations of the Internal Revenue Code, the Bank Secrecy Act and various money laundering statutes. The findings of these investigations are referred to the Department of Justice for recommended prosecution.
Sources of Criminal Investigations for IRS Special Agents
Criminal Investigations can be initiated from information obtained from within the IRS when a revenue agent (auditor), revenue officer (collection) or investigative analyst detects possible fraud. Information is also routinely received from the public as well as from ongoing investigations underway by other law enforcement agencies or by United States […]