Jury instructions, also known as charges or directions, are a set of legal guidelines given by a judge to a jury in a court of law. They are an important procedural step in a trial by jury, and as such are a cornerstone of criminal process in many common law countries.
The purpose of instructions are to inform the jury about the legal principles and standards that they must apply in order to reach a verdict. This ensures that criminal trials are fair and lawful. They are typically delivered after closing arguments, but sometimes may be delivered mid-trial if necessary.
In some cases, the instructions given by a judge to the jury are incorrect, which may (depending on the issue) result in a mistrial.