Occurs when the shuttle: lands outside the court; passes through or under the net; does not pass over the net; touches the roof, ceiling or any side walls; touches a player or player’s clothing; touches any person or object out of bounds; is caught, held and slung on the racket; is hit twice in a row by the same player on the same play; or if both partners in doubles hit the shuttle before it is returned to the other side. A player also commits a fault if the shuttle is in play and he: hits it when it is on the opponent’s side of the net; touches the net or posts with his racket, clothing or any part of his body; has his racket or any part of his body over or under the net; or obstructs an opponent’s stroke.