The tribunal system of the United Kingdom is part of the national system of administrative justice with tribunals classed as non-departmental public bodies (NDPBs). Tribunals operate formal processes to adjudicate disputes in a similar way to courts of law, but have different rules and procedures; and operate only in a specialised area. In theory, their procedures may be better suited for particular types of disputes, cheaper to administer and require less-qualified officials. In the case of appeals, however, disputes will enter the conventional court system, possibly reaching the Court of Appeal and UK Supreme Court, so the judiciary still have oversight over the tribunals. Parties are sometimes represented by lawyers at tribunals.