(a) A person commits the crime of terroristic threatening in the first degree if the person knowingly sends or delivers a bacteriological, biological, chemical, or radiological substance or an imitation bacteriological, biological, chemical, or radiological substance and, as a result,
(1) places a person in reasonable fear of physical injury to any person;
(2) causes evacuation of a building, public place or area, business premises, or mode of public transportation; or
(3) causes serious public inconvenience.
(b) In this section,
(1) “bacteriological, biological, chemical, or radiological substance” means a material that is capable of causing serious physical injury;
(2) “imitation bacteriological, biological, chemical, or radiological substance” means a material that by its appearance would lead a reasonable person to believe that it is capable of causing serious physical injury.
(c) Terroristic threatening in the first degree is a class B felony.