After a simple drug possession case, which was tried over a two-day period, was submitted to a jury, the jury, after a day of deliberations, informed the trial judge that it was unable to reach a unanimous decision. After an attempt by the trial judge to persuade the jury to reach a verdict did not result in a verdict by the end of the following day, the prosecution moved for a mistrial. Despite the defendant's objection to the motion, the trial judge declared a mistrial. The prosecutor seeks to retry the defendant on the original charge. The defendant objects to retrial on the grounds that it is improper under the Double Jeopardy Clause. Should the court permit the retrial