(1) In section 47B of the Employment Rights Act 1996 (protected disclosures), after subsection (1) insert -
"(1A) A worker ("W") has the right not to be subjected to any detriment by any act, or any deliberate failure to act, done -
(a) by another worker of W's employer in the course of that other worker's employment, or
(b) by an agent of W's employer with the employer's authority,
on the ground that W has made a protected disclosure.
(1B) Where a worker is subjected to detriment by anything done as mentioned in subsection (1A), that thing is treated as also done by the worker's employer.
(1C) For the purposes of subsection (1B), it is immaterial whether the thing is done with the knowledge or approval of the worker's employer.
(1D) In proceedings against W's employer in respect of anything alleged to have been done as mentioned in subsection (1A)(a), it is a defence for the employer to show that the employer took all reasonable steps to prevent the other worker -
(a) from doing that
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