Casualty recorders must signal if/when the information they publish does not reach a level of corroboration that allows the event to be fully confirmed yet.
It is possible that some casualty recorders decide to publish all events they record – as long as it is safe to do so – without having been able to corroborate the information that all events are based on. In some circumstances it may be extremely difficult to determine the facts, given conflicting accounts or because of missing information, until a later time, prompting the casualty recorder to decide to publish what is known about an event in the interim. In these circumstances, it is important that casualty recorders flag events/individuals whose data is not confirmed to the level that they can usually provide so that users know how to treat such cases.
Standards for Casualty Recording, p. 57