Wilful violations. Penalties.

(b) Any entity which wilfully delivers or discloses to the commissioner or his authorized agent any list, return, account, statement, or other document, known by it to be fraudulent or false in any material matter, shall, in addition to any other penalty provided by law, be guilty of a class D felony. No entity shall be charged with an offense under both subsections (a) and (b) of this section in relation to the same tax period but such entity may be charged and prosecuted for both such offenses upon the same information.