(2) Complicity. A person who engages in conduct intending to aid another to commit a crime is guilty of criminal attempt if the conduct would establish his complicity under section 401 were the crime committed by the other person, even if the other is not guilty of committing or attempting the crime, for example, because he has a defense of justification or entrapment.
(3) Grading. Criminal attempt is an offense of the same class as the offense attempted, except that (a) an attempt to commit a Class A felony shall be a Class B felony, and (b) whenever it is established by a preponderance of the evidence at sentencing that the conduct constituting the attempt did not come dangerously close to commission of the crime, an attempt to commit a Class B felony shall be a Class C felony and an attempt to commit a Class C felony shall be a Class A misdemeanor.
(4) Jurisdiction. There is federal jurisdiction over an offense defined in this section as prescribed in section 203.