The USA v. Barry Bonds case, which ended in April 2011, demonstrated the magnitude the government will pursue someone simply on the grounds of lying.
At the Law Offices of Moskowitz, LLP, we routinely handle clients who are presumed by the IRS to have lied about something on their tax return. Efforts to investigate by the IRS or State are unrelenting and intrusive. What we can learn from the Bonds case is that the government will use all of its resources and power to prosecute someone if they think they lied. If for any reason, you are under investigation we recommend that you seek immediate representation.