Magistrates are trained volunteers, selected from the local community, who deal with a wide range of criminal and civil proceedings. They are also known as Justices of the Peace. In the adult criminal court, magistrates decide on offences which carry up to twelve months in prison, or an unlimited fine. Magistrates also sit in the family court where they help resolve disputes that involve children, and in the youth court which deals with criminal matters involving young people aged 10-17. Established over 650 years ago, the magistracy is a key part of the judiciary of England and Wales, and it is a role underpinned by the principles of 'local justice' and 'justice by one's peers'.