"All information will be treated in the strictest confidence, " the PSNI statement said.

BBC: Fresh appeal over murder of Detective Garda Adrian Donohoe

Dated 24 September 2009 and marked "In strictest confidence", the document says that "through the dispute" the Royal Mail will "deliver the necessary 2009 changes with or without union engagement".

BBC: CWU chief warns of extra strikes

To register a concern and begin the application process, members of the public can call Grampian Police on 0845 600 5700 in what the force said would be the "strictest confidence".

BBC: Child and mother

Every contact will be held in the strictest confidence.

FORBES: Use A Proxy Server, Feed An Intel Service

These will be treated in the strictest confidence.

BBC: Patient waits at Antrim Hospital 'unacceptable': Poots

We will treat the details you supply with the strictest of confidence.

BBC: Contaminated ecstasy may be behind deaths

Your call will be treated in the strictest of confidence.

BBC: 'Placenta' found by London dog walker