"In our view, it is clear that historically, Caledonia and the other East Coast bases had never had part-time working and we consider that the claimant has established that this was a "practice" which at least potentially disadvantaged her (although we shall consider later whether the potential disadvantage was an actual detriment)."
"I think a detriment exists if a reasonable worker would or might take the view that the duty was in all the circumstances to his detriment." (the emphasis is ours). That observation was endorsed by Lord Hope in the case of Shamoon to which we were also referred by the respondents where, at paragraph 35 of the House of Lords judgment, Lord Hope says: "