Threats & hoaxes
If we receive a bomb warning or other credible and specific threat, whether by phone, fax, email or text message, or even posted to a message board or received by tape, the first priority is to pass it on to the appropriate authorities. We must not reveal the current code words normally used by groups giving bomb warnings.
We should not reveal security details or other sensitive information not widely in the public domain which might assist an attack.
We do not normally report threats against named individuals unless they have produced a visible effect, for example, the cancellation of a public appearance.
We must take care not to identify as possible targets people who have not previously been identified and would otherwise not be in danger, for example by naming animal laboratories or firms undertaking work for military establishments.
We do not normally report incidents which turn out to be hoaxes unless they have had a serious and evident effect, such as a major and highly visible transport disruption.