Dickinson was charged with possession of cocaine. At Dickinson's trial, the prosecution established that, when approached by police on a suburban residential street corner, Dickinson dropped a plastic bag and ran, and that when the police returned to the corner a few minutes later after catching Dickinson, they found a plastic bag containing white powder. Dickinson objects to introduction of this bag (the contents of which would later be established to be cocaine), citing lack of adequate identification. The objection should be 
overruled, because there is sufficient evidence to find that the bag was the one Dickinson dropped.  overruled, because the objection should have been made on the basis of incomplete chain of custody.  sustained, because Dickinson did not have possession of the bag at the time he was arrested.  sustained, unless the judge makes a finding by a preponderance of the evidence that the bag was the one dropped by Dickinson. 