Peter Wright a former British secret service agent published Spycatcher in Australia
the United Kingdom sought to prevent its publicaiton in the UK.
The court held that a duty of confidence arose in the case of Wright because he had agreed to keep informaton secret
The court will uphold the United Kingdom’s international agreements when the court is free to do so. Sometimes the court is NOT free to uphold such agreements because of a contrary act of Parliament
Spycatcher was against the public interert. Wright probably had no copyright over his book
Duty to maintain confidentiality only applies to confidential information and not to nonsense.
There can be a countervailing public interest for disclosure and this can outweight to duty maintain confidence.