We must not execute anyone unless the proof is absolute, irrefutable and without any doubt whatsoever.
"You can't uninvite someone you've invited unless the proof that the person is not fit to be in your house is absolute," she said.
Larry Stone, a national baseball writer for The Seattle Times, said he had voted for McGwire under the principle that a player must be presumed innocent unless irrefutable proof of performance-enhancing drug use existed.
Generally, officials do not reverse calls unless the proof is conclusive, and considering the importance of this particular decision, it was a surprise that the officials gave the Steelers a touchdown.
In 2008 the group wrote sweeping guidelines advising museums that they "normally should not" acquire a work unless solid proof exists that the object was, prior to 1970, outside the country where it was discovered in modern times, or was legally exported from that country after 1970.
For example, in 2008, the Association of Art Museum Directors, the industry's major trade group, wrote sweeping guidelines advising museums that they "normally should not" acquire a work unless solid proof exists that the object was, before 1970, outside the country where it was discovered in modern times, or was legally exported from that country after 1970.
The new policy advises museums that they "normally should not" acquire a work unless solid proof exists that the object was outside its country of probable modern discovery before 1970, or was legally exported from its probable country of modern discovery after 1970.
The United States takes the opposite approach: chemicals are not banned unless there is proof of harm.
Ciba-Geigy, the Dow Chemical Company (which had acquired Union Carbide), and United Water Toms River (previously Toms River Water Company) were not going to budge a legal inch unless there was proof that their activities had caused cancer.
Because lending standards have tightened considerably since the global economic downturn, overseas buyers may have difficulty obtaining financing from Scottish or British banks unless they have proof of residency or an employment contract, Mr. Houston said.
