
References From the Laws Of The Game
Jacks must be black or yellow and conform to BCGBA regulations. See Appendix A in the Laws Of The Game.
4.3 If the jack in its course is impeded in any way, or stops on the land of other players, it must under all circumstances be returned. If two jacks are bowled near the same place, the one that is last stationary must be returned. The same player to have another attempt at setting a mark.
4.7 If the opponent then fails to set a mark, the leader shall have another attempt and so on, alternately, until a mark has been set by one of them. The original leader to play the first bowl.
4.8 When the leader, having had an attempt to set a mark, is prevented from delivering the first bowl through a tape on the green during the measure of a mark from another end, or if the first bowl is impeded, the jack may be returned for the leader to have another attempt at setting a mark.
4.9 The first attempt to set a new mark, after a dead end, shall be made by the same player who set the mark in the dead end. Any dead bowls are reinstated for the new end. Any forfeited bowls are not reinstated for the replayed end.
5.8 If the leader’s first bowl has been forfeited, the leader’s remaining bowl shall be played, followed by the opponent playing two bowls consecutively.
5.9 If the first bowl of the leader’s opponent has been forfeited, the leader’s remaining bowl shall be played, followed by the opponent playing the last bowl.
6.1 A bowl played while the jack or preceding bowl is in motion shall be forfeited.
7.1.a If, as a result of a lawfully played bowl, the jack is disturbed and goes off the green, or is prevented from going off by resting against anything at the edge or in the channel, that end shall be dead. If, after a legitimate mark has been set, the jack goes off the green, the footer should be placed one metre in from the point where the jack left the green, the same player setting the mark. Any dead bowls are reinstated for the new end. Any forfeited bowls are not reinstated for the replayed end.