In the game of Craps, the result of a roll can be invalidated if a die is cocked, as it may lead to uncertainty about the true value showing on the die. A cocked die can occur due to improper throwing or if the dice hit an object on the table. When players suspect a die is cocked, the shooter may be asked to re-roll to ensure a fair outcome. In most casinos, any visible cocked die will be considered invalid, and the dealers will typically correct the situation by requiring a new roll.
Cocked Die/Dice Example
For example, if a player rolls the dice and one die lands slightly tilted against the edge of the table, the dealers may declare it a cocked die and require the shooter to roll again.