If two or more persons conspire to commit any crime defined by this subchapter, each of such persons shall be guilty of conspiracy and subject to the same punishment as if he or she had committed the crime that he or she conspired to commit, whether or not any act be done in furtherance of the conspiracy. The fact that any of his or her fellow conspirators has been acquitted, has not been arrested or convicted, is not amenable to justice, or has been pardoned or otherwise discharged before or after conviction shall not constitute any defense or ground of suspension of judgment, sentence, or punishment on behalf of any person prosecuted under this section.