Strongly urges States to ensure that no statement that is established to have been made as a result of torture is invoked as evidence in any proceedings, except against a person accused of torture as evidence that the statement was made, and calls upon States to consider extending that prohibition to statements made as a result of other cruel, inhuman or degrading treatment or punishment, and recognizes that adequate corroboration of statements, including confessions, used as evidence in any proceedings constitutes one safeguard for the prevention of torture and other cruel, inhuman or degrading treatment or punishment;