(a) Return. The verdict shall be unanimous, unless otherwise stipulated to by the parties. It shall be returned by the jury to the judge in open court.(b) Several defendants. If there are 2 or more defendants, or 2 or more counts, the jury at any time during its deliberations may return a verdict or verdicts with respect to a defendant or defendants, or with respect to a count or counts, as to whom it has agreed; if the jury cannot agree with respect to all, the defendant or defendants, or count or counts, as to whom it does not agree may be tried again.(c) Poll of jury. When a verdict is returned and before it is recorded, the jury shall be polled at the request of any party or upon the court's own motion. If upon the poll there is not unanimous concurrence, or there is not concurrence by the number of jurors stipulated to as being necessary for returning a verdict, the jury may be directed to retire for further deliberations or may be discharged.