An employee has the right not to be subjected to any detriment by any act, or any deliberate failure to act, by his employer done on the ground that—
the employee performed (or proposed to perform) any functions as such a representative or a member of such a committee,
he brought to his employer's attention, by reasonable means, circumstances connected with his work which he reasonably believed were harmful or potentially harmful to health or safety,
A worker has the right not to be subjected to any detriment by any act, or any deliberate failure to act, by his or her employer done on the ground that—
For the purposes of subsection (1A)(b) whether steps which a worker took (or proposed to take) were appropriate is to be judged by reference to all the circumstances including, in particular, his knowledge and the facilities and advice available to him at the time.
A worker is not to be regarded as having been subjected to any detriment on the ground specified in subsection (1A)(b) if the employer shows that it was (or would have been) so negligent for the worker to take the steps which he took (or proposed to take) that a reasonable employer might have treated him as the employer did.
. . . This section does not apply where the worker is an employee and the detriment in question amounts to dismissal (within the meaning of Part X).