(a) The umpire shall ascertain whether the bowler intends to bowl right
handed or left handed, over or round the wicket, and shall so inform the
striker.
It is unfair if the bowler fails to notify the umpire of a change in his
mode of delivery. In this case the umpire shall call and signal No ball.
(b) Underarm bowling shall not be permitted except by special agreement
before the match.
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For a delivery to be fair in respect of the arm the ball must not be
thrown. See 3 below.
Although it is the primary responsibility of the striker's end umpire to
ensure the fairness of a delivery in this respect, there is nothing in
this Law to debar the bowler's end umpire from calling and signaling No
ball if he considers that the ball has been thrown.
(a) If, in the opinion of either umpire, the ball has been thrown, he
shall
(i) call and signal No ball.
(ii) caution the bowler, when the ball is dead. This caution shall apply
throughout the innings.
(iii) inform the other umpire, the batsmen at the wicket, the captain of
the fielding side and, as soon as practicable, the captain of the
batting side of what has occurred.
(b) If either umpire considers that after such caution a further
delivery by the same bowler in that innings is thrown, the umpire
concerned shall repeat the procedure set out in (a) above, indicating to
the bowler that this is a final warning. This warning shall also apply
throughout the innings.
(c) If either umpire considers that a further delivery by the same
bowler in that innings is thrown,
(i) the umpire concerned shall call and signal No ball. When the ball is
dead he shall inform the other umpire, the batsmen at the wicket and, as
soon as practicable, the captain of the batting side of what has
occurred.
(ii) the umpire at the bowler's end shall direct the captain of the
fielding side to take the bowler off forthwith. The over shall be
completed by another bowler, who shall neither have bowled the previous
over nor be allowed to bowl the next over.
The bowler thus taken off shall not bowl again in that innings.
(iii) the umpires together shall report the occurrence as soon as
possible to the Executive of the fielding side and any Governing Body
responsible for the match, who shall take such action as is considered
appropriate against the captain and bowler concerned.
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A ball is fairly delivered in respect of the arm if, once the bowler's
arm has reached the level of the shoulder in the delivery swing, the
elbow joint is not straightened partially or completely from that point
until the ball has left the hand. This definition shall not debar a
bowler from flexing or rotating the wrist in the delivery swing.
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If the bowler throws the ball towards the striker's end before entering
his delivery stride, either umpire shall call and signal No ball. See
Law 42.16 (Batsmen stealing a run). However, the procedure stated in 2
above of caution, informing, final warning, action against the bowler
and reporting shall not apply.
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For a delivery to be fair in respect of the feet, in the delivery stride
(i) the bowler's back foot must land within and not touching the return
crease.
(ii) the bowler's front foot must land with some part of the foot,
whether grounded or raised, behind the popping crease.
If the umpire at the bowler's end is not satisfied that both these
conditions have been met, he shall call and signal No ball.
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The umpire at the bowler's end shall call and signal No ball if a ball
which he considers to have been delivered, without having previously
touched the bat or person of the striker,
either (i) bounces more than twice
or (ii) rolls along the ground
before it reaches the popping crease.
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If a ball delivered by the bowler comes to rest in front of the line of
the striker's wicket, without having touched the bat or person of the
striker, the umpire shall call and signal No ball and immediately call
and signal Dead ball.
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In addition to the instances above, an umpire shall call and signal No
ball as required by the following Laws.
Law 40.3 - Position of wicket-keeper
Law 41.5 - Limitation of on side fielders
Law 41.6 - Fielders not to encroach on the pitch
Law 42.6 - Dangerous and unfair bowling
Law 42.7 - Dangerous and unfair bowling – action by the umpire
Law 42.8 - Deliberate bowling of high full pitched balls.
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An umpire shall revoke the call of No ball if the ball does not leave
the bowler's hand for any reason.
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A call of No ball shall over-ride the call of Wide ball at any time. See
Law 25.1 (Judging a Wide) and 25.3 (Call and signal of Wide ball).
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The ball does not become dead on the call of No ball.
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A penalty of one run shall be awarded instantly on the call of No ball.
Unless the call is revoked, this penalty shall stand even if a batsman
is dismissed. It shall be in addition to any other runs scored, any
boundary allowance and any other penalties awarded.
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The one run penalty for a No ball shall be scored as a No ball extra. If
other penalty runs have been awarded to either side, these shall be
scored as in Law 42.17 (Penalty runs). Any runs completed by the batsmen
or a boundary allowance shall be credited to the striker if the ball has
been struck by the bat; otherwise they also shall be scored as No ball
extras.
Apart from any award of a 5 run penalty, all runs resulting from a No
ball, whether as No ball extras or credited to the striker, shall be
debited against the bowler.
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A No ball shall not count as one of the over. See Law 22.4 (Balls not to
count in the over).
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When No ball has been called, neither batsman shall be out under any of
the Laws except 33 (Handled the ball), 34 (Hit the ball twice), 37
(Obstructing the field) or 38 (Run out).
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