We have seen penalty cards being used by referees/umpires in other team sports like Football, Hockey, Rugby, Handball, Volleyball, etc. A penalty card is used as a means of warning, reprimanding or penalising a player, coach or team official. Penalty cards are most commonly used to indicate that a player has committed an offense. The colour and/or shape of the card used by the official indicates the type or seriousness of the offence and the level of punishment that is to be applied. (Source:)
We have also seen yellow and red cards used in jest by cricket umpires in the past like Billy Bowden and Rudi Koertzen.
But, the Marylebone Cricket Club (MCC) is considering the addition of what is akin to a penalty box in, called the sin-bin, in order to curb unruly behaviour. Under the new laws, players could be sent off for 10 overs for serious offenses. The MCC has arrived at this decision after discussions with various umpire associations. They felt that umpires need to be empowered to enforce a new code of conduct which will cover four levels of offense.
The lower level of offenses cover acts such as time-wasting, dissent or deliberate physical contact, such as shoulder-barging among others. These offenses will result in a five-run penalty to be imposed immediately. The level-three tier of offenses including intimidating behaviour, or bowling a deliberate beamer. These would carry a ten over hiatus in the sin-bin.
Proposals have been addressed regarding sending a player off in the case of level-four offenses. These include threatening an umpire, assaulting a player, official or spectator, and racist abuse. If the offense is committed by a batsman, he will be declared retired out.
The MCC will be bringing this concept in trials in club, school and university level cricket. They will be publishing the redrafted laws of the game in 2017. Various national boards and the International Cricket Council are keeping a close eye on these trials. If they proceed with success, these laws could be implemented throughout the world.