§ 490.47 Criminal use of a chemical weapon or biological weapon in the third degree. A person is guilty of criminal use of a chemical weapon or biological weapon in the third degree when, under circumstances evincing a depraved indifference to human life, he or she uses, deploys, releases, or causes to be used, deployed, or released any select chemical agent or select biological agent, and thereby creates a grave risk of death or serious physical injury to another person not a participant in the crime. Criminal use of a chemical weapon or biological weapon in the third degree is a class B felony.