JM 9-42.160
It is the Department's policy not to charge a Section 1001 violation in situations in which a suspect, during an investigation, merely denies guilt in response to questioning by the government. This policy is to be narrowly construed, however; affirmative, discursive and voluntary statements to Federal criminal investigators would not fall within the policy. Further, certain false responses to questions propounded for administrative purposes (e.g., statements to border or United States Immigration and Naturalization Service agents during routine inquiries) are also prosecutable, as are untruthful "no's" when the defendant initiated contact with the government in order to obtain a benefit.
Prior consultation with the Criminal Division is not required before initiating prosecutions for false statements to Federal investigators; however, the Fraud Section is available for consultation on cases involving these principles.
[updated January 2020]