(1) No person, knowing that a criminal trial or proceeding or an investigation by a duly constituted prosecuting authority, law enforcement agency, grand jury or legislative committee of this state is pending or is about to be instituted, shall:

   (a) Alter, destroy, conceal, or remove any record, document, or thing with the purpose to impair its verity or availability in such proceeding or investigation; or

   (b) Make, present, or use any record, document, or thing, knowing it to be false.

   (2) Any person who violates any provision of this section shall be guilty of a felony of the third degree, punishable as provided in s. 775.082, s. 775.083, or s. 775.084.

s. 2, ch. 72-315.