I'm not sure about state/local police but it's definitely illegal if it's a federal officer: https://www.justice.gov/archives/jm/criminal-resource-manual-916-fa

I'm not sure about state/local police but it's definitely illegal if it's a federal officer: https://www.justice.gov/archives/jm/criminal-resource-manual-916-false-statements-federal-investigator https://www.justice.gov/archives/jm/criminal-resource-manual...