(a) A person is guilty of making a false statement to the Commission on Special Investigations when:
(1) Such person, with the intent to impede the commission or to impede an investigator of the commission acting in the lawful exercise of his or her official duties, knowingly and willfully makes any false, fictitious or fraudulent statement or representation, or makes or uses any false writing or document knowing the same to contain any false, fictitious or fraudulent statement or entry;