The Marker’s Duties (taken from the Laws of the Sport 4th Edition.Law 42)
42.1 In the absence of an umpire, the marker must:
42.1.1 make sure that all aspects of play are carried out in line with the Laws of the Sport of Bowls;
42.1.2 make sure, before the game starts, that:
42.1.2.1 all bowls have a clearly visible, valid World Bowls Stamp imprinted on them;
42.1.2.2 the rink of play is the correct width in line with law 49.1 by measuring it; and
42.1.2.3 by measuring it; and the pegs, discs or other types of markers on the side banks in the direction of play are the correct distances in line with law 49.12 by measuring them.
42.2 The marker must:
42.2.1 check the mat is placed on the centre line of the rink;
42.2.2 centre the jack;
42.2.3 make sure that the jack is at least 23 metres from the mat line after it has been centred; 42.2.4 place a jack that comes to rest less than 2 metres from the front ditch as described in law 9.2;
42.2.5 stand to one side of the rink, behind the jack and away from the head;
42.2.6 answer any specific question about the state of the head which is asked by the player in possession of the rink;
42.2.7 when asked, tell or show the player in possession of the rink the position of the jack; 42.2.8 when asked, tell or show the player in possession of the rink which bowl or bowls the marker considers to be shot;
42.2.9 when authorised by the Controlling Body, signal to players and spectators (using the appropriate number and colour of shot indicators or some other suitable method) which player’s bowl or bowls the marker considers to be shot;
42.2.10 mark all touchers with chalk and remove the chalk marks from non-touchers as soon as they come to rest;
42.2.11 stop any bowl that is from a neighbouring rink and could move a jack or bowl that is at rest;
42.2.12 if both players agree, remove all dead bowls from the rink of play;
42.2.13 marks the position of a jack and any touchers which are in the ditch as described in laws 14.4 and 18.2;
42.2.14 not move, or cause to be moved, either the jack or any bowls until the players have agreed the number of shots scored; and
42.2.15 measure any disputed shot or shots when asked to do so by either player. If the players are not satisfied with the marker’s decision, the marker must ask the umpire to do the measuring. If the Controlling Body has not appointed an umpire, the marker must choose a competent neutral person to act as the umpire. The umpire’s decision is final.
42.3 When each end has been completed, the marker must:
42.3.1 record the score on the score card;
42.3.2 if scoreboards are not being used, tell the players the running totals of the scores; and 42.3.3 remove from the rink the mat used during the previous end, if necessary.
42.4 When the game has been completed, the marker must make sure that the score card:
42.4.1 contains the names and signatures of the players;
42.4.2 contains the time at which the game was completed; and
42.4.3 is dealt with in line with the Conditions of Play.