Garces v. US Atty. Gen., 611 F.3d 1337 (11th Cir. Jul. 27, 2010) (noncitizen whose drug trafficking conviction was vacated on the basis that the plea was not voluntary may still be found inadmissible for reason to believe that the noncitizen has engaged in drug trafficking, and the DHS may use police reports, the vacated conviction, and the motion to vacate itself to make a reason to believe determination; in this case, the submitted records were insufficient since the record did not show whether the noncitizen entered a plea of guilt or a plea of no contest, and the submitted police reports only made conclusions [he had engaged in drug trafficking], rather than describing a set of facts that would be sufficient to warrant such a conclusion).
NOTE: This is a very good case to read on the topic of reason to believe and the admissibility of evidence in immigration proceedings.