(a) The wicket is put down if a bail is completely removed from the top of the stumps, or a stump is struck out of the ground,
(i) by the ball,
or (ii) by the striker’s bat if he is holding it or by any part of his bat that he is holding,
or (iii) notwithstanding the provisions of Law 6.8(a), by the striker’s bat in falling if he has let go of it, or by any part of his bat becoming detached,
An explanation of the 2010 change to Law 28
or (iv) by the striker’s person or by any part of his clothing or equipment becoming detached from his person,
or (v) by a fielder with his hand or arm, providing that the ball is held in the hand or hands so used, or in the hand of the arm so used.
The wicket is also put down if a fielder strikes or pulls a stump out of the ground in the same manner.
(b) The disturbance of a bail, whether temporary or not, shall not constitute its complete removal from the top of the stumps, but if a bail in falling lodges between two of the stumps this shall be regarded as complete removal.
2. One bail off
If one bail is off, it shall be sufficient for the purpose of putting the wicket down to remove the remaining bail or to strike or pull any of the three stumps out of the ground, in any of the ways stated in 1 above.
3. Remaking wicket
If a wicket is broken or put down while the ball is in play, it shall not be remade by an umpire until the ball is dead. See Law 23 (Dead ball). Any fielder may, however, while the ball is in play,
(i) replace a bail or bails on top of the stumps.
(ii) put back one or more stumps into the ground where the wicket originally stood.
4. Dispensing with bails
If the umpires have agreed to dispense with bails in accordance with Law 8.5 (Dispensing with bails), it is for the umpire concerned to decide whether or not the wicket has been put down.
(a) After a decision to play without bails, the wicket has been put down if the umpire concerned is satisfied that the wicket has been struck by the ball, by the striker’s bat, person or items of his clothing or equipment as described in 1(a) (ii), (iii) or (iv) above, or by a fielder in the manner described in 1(a)(v) above.
(b) If the wicket has already been broken or put down, (a) above shall apply to any stump or stumps still in the ground. Any fielder may replace a stump or stumps, in accordance with 3 above, in order to have an opportunity of putting the wicket down.