(a) A person shall be guilty of attempt if he:
(1) Intentionally engages in conduct which would constitute the crime or offense if the attendant circumstances were as he believes them to be; or
(2) Intentionally engages in conduct which, under the circumstances as he believes them to be, constitutes a substantial step in a course of conduct intended to culminate in his commission of the crime or offense.
(b) When causing a particular result is an element of the crime or offense, a person shall be guilty of an attempt to commit the crime or offense if, acting with the state of mind required to establish liability with respect to the attendant circumstances specified in the definition of the crime or offense, he intentionally engages in conduct which is a substantial step in a course of conduct intended or known to cause such a result.
(c) Conduct shall not be considered a substantial step under this section unless it is strongly corroborative of the defendant's criminal intent.
(d) Criminal attempt is an offense when the crime or offense attempted is a violation of the provisions of this Code.
State law reference--Similar provisions, R.R.S. 1943, 28-201.