1- In an ad hoc arbitration proceeding according UAR seated in a jurisdiction which has adopted UML verbatim, what 4 aspects of any evidence must be determined by the arbitral tribunal?

2- What is the function of a witness of fact and how may their evidence be given?

3- Identify who can appoint an expert witness under UAR and the respective advantages or disadvantages of each choice of appointor?

4- What is the are the functions and duties of an expert witness?