(1) Damages under this Part i n respect of a death or injury are not recoverable from the Commonwealth or a Commonwealth authority by or for the benefit of a person where that person, or a person lawfully acting or entitled to act on behalf of that person:
(a) has failed to take any action that he or she could reasonably have been expected to take, if this Part had not been enacted, to recover damages in respect of the death or injury from any other person who was, or may have been, liable to pay damages in respect of the death or injury;
(b) has, without the consent in writing of the Commonwealth or the Commonwealth authority, as the case may be, entered into a compromise, settlement or agreement whereby a person other than the Commonwealth or the Commonwealth authority has been discharged in whole or in part from liability in respect of the death or injury to which he or she was, or might have been, subject; or
(c) has refused to comply with a request under subsection ( 2).
(2) The Commonwealth or a Commonwealth authority may, in writing, request a person who appears to be entitled to recover damages in respect of a death or injury to which this Part applies against a person other than the Commonwealth or the Commonwealth authority, or a person lawfully acting or entitled to act on behalf of such a person, to take or continue proceedings (whether in the Commonwealth or elsewhere) to recover those damages and, where proceedings are so taken or continued, the proceedings shall be conducted on behalf of the first - mentioned person at the expense of the Commonwealth or the Commonwealth authority.
(3) The Commonwealth or a Commonwealth authority may, at any time, by notice in writing, revoke a request made under subsection ( 2), and, in that event, is not liable for any costs or expenses incurred in respect of the continuance of the proceedings after the revocation.