The imposition of penalties is primarily a function of the Chair Umpire .
The Referee may impose penalties in any umpired or non-umpired match on the basis of his own observations or those of his designated assistants .
The imposition of penalties is primarily a function of the Chair Umpire , but the Referee may impose penalties in any umpired or non-umpired match on the basis of his own observations or those of his designated assistants .