[43H Disclosure of exceptionally serious failure]
[43H Disclosure of exceptionally serious failure]

[(1)     A qualifying disclosure is made in accordance with this section if—

(a)     . . .

(b)     [the worker] reasonably believes that the information disclosed, and any allegation contained in it, are substantially true,

(c)     he does not make the disclosure for purposes of personal gain,

(d)     the relevant failure is of an exceptionally serious nature, and

(e)     in all the circumstances of the case, it is reasonable for him to make the disclosure.