(1) An obstruction of investigation consists of knowingly:
(a)  Providing false information to, or knowingly withholding information from, any person requesting such information if that person is authorized to investigate a violation of this chapter or to enforce the criminal or civil remedies of this chapter where that information is properly requested and is material to the investigation or enforcement; or
(b)  Altering any document or record required to be retained pursuant to this chapter or any rule issued by the department of health and welfare, when the alteration is intended to mislead an investigation and concerns information material to that investigation.
(2)  Whoever commits an obstruction of investigation shall be guilty of a felony and shall be sentenced pursuant to the provisions of section 18-112, Idaho Code.