54.— (1) Where a person would, but for this subsection, be eligible to receive—

(a) more than one survivor’s pension to which section 33 relates, or

(b) more than one survivor’s pension (by whatever name called) paid under a pre-existing public service pension scheme, or

(c) one or more than one pension to which paragraph (a) relates and one or more than one pension to which paragraph (b) relates,

then, subject to subsection (2), that person shall be eligible to receive only one of those pensions.

(2) Where—

(a) a deceased member,

(b) a deceased member of any pre-existing public service pension scheme, or

(c) a deceased person to whom both paragraphs (a) and (b) relate,

was duly in receipt of, or eligible to receive, more than one pension in respect of his or her public service, then the person eligible to receive in respect of such service a survivor’s pension to which subsection (1) relates shall be eligible to receive each such pension as relates to the public service of any one such deceased member.