A firing squad is normally composed of several military personnel or law enforcement officers. Usually, all members of the group are instructed to fire simultaneously, thus preventing both disruption of the process by a single member and identification of the member who fired the lethal shot. To avoid the disfigurement of multiple shots to the head, the shooters are typically instructed to aim at the heart, sometimes aided by a paper target. The prisoner is typically blindfolded or hooded, as well as restrained, although in some cases prisoners have asked to be allowed to face the firing squad without their eyes covered. Executions can be carried out with the condemned either standing or sitting. There is a tradition in some jurisdictions that such executions are carried out at first light, or at sunrise, which is usually up to half an hour later. This gave rise to the phrase "shot at dawn."