Some differences between a court and a tribunal are:
Tribunals are more straightforward when it comes to resolving disputes and have a more relaxed approach to the rules of evidence than courts. Courts on the other hand are more formal and have more elaborate rules on how cases should be run
Tribunals encourage and often require parties to speak on their own behalf. Lawyers are only permitted in special circumstances.
Tribunals often specialise in resolving disputes in a particular area. Courts generally have the power to hear a much broader range of cases.
It is usually much cheaper to resolve a dispute at a tribunal rather than have it litigated at court.
