Why does a jury have 12 members?
Moreover, do all 12 jurors have to agree?
A - In a criminal trial the jury verdict must be unanimous, that is all 12 jurors must agree. Jury members must decide for themselves, without direction from the judge, the lawyers, or anyone else, how they will proceed in the jury room to reach a verdict. A jury that cannot agree on a verdict is called a 'hung' jury.
Thereof, can a jury be less than 12?
The size of the jury varies; in criminal cases involving serious felonies there are usually 12 jurors. In civil cases many trials require fewer than twelve jurors.
(a) Number of Jurors. A jury must begin with at least 6 and no more than 12 members, and each juror must participate in the verdict unless excused under Rule 47(c). Unless the parties stipulate otherwise, the verdict must be unanimous and must be returned by a jury of at least 6 members.