<P> A hung jury or deadlocked jury is a judicial jury that cannot agree upon a verdict after extended deliberation and is unable to reach the required unanimity or supermajority . </P> <P> This situation can occur only in common law legal systems, because civil law systems either do not use juries at all or provide that the defendant is automatically acquitted if the majority or supermajority required for conviction is not reached during a single, solemn vote . </P>

What does it mean to have a hung jury