do all members of the jury have to agree
Hung jury Juries in criminal cases are generally, as a rule, required to reach a unanimous verdict, and juries in civil cases typically have to reach a majority on some level. If a defendant has been found guilty of a capital offense, one that could result in the death penalty if the person is eligible, the opinion of the jury must be unanimous if the defendant is to be sentenced to death. Currently, two states, Oregon and Louisiana, do not require unanimous verdicts in criminal cases. Each requires a 10-2 majority for conviction, except for capital crimes: Oregon requires at least 10 votes out of 12 for felonies, but unanimity for first degree murder, and Louisiana requires all 12.
Jury trial Jury trials are used in a significant share of serious criminal cases in almost all common law lawful systems (Singapore, for example, is an exception), and juries or lay judges have been incorporated into the legal systems of many civil law countries for criminal cases. Only the United States makes routine use of jury trials in a wide variety of non-criminal cases. Other common law legal jurisdictions use jury trials only in a very select class of cases that make up a tiny share of the overall civil docket (like defamation suits in England and Wales), but true civil jury trials are almost entirely absent elsewhere in the world. Some civil law jurisdictions, however, have arbitration panels where non-legally trained members decide cases in select subject-matter areas relevant to the arbitration panel members' areas of expertise.