You might like to make a copy of this for future reference.
Western Australia Sentencing Act 1995 (reprinted 8 January 2016)
90. Life imprisonment for murder, imposing
(1) A court that sentences an offender to life imprisonment for murder must either
(a) set a minimum period of
(i) at least 15 years, if the offence is committed by an adult offender (within the meaning
given in
The Criminal Code section 1(1)) in the course of conduct that constitutes an aggravated home burglary (within the meaning given in that section); or
(ii) at least 10 years, in any other case,
that the offender must serve before being eligible for release on parole; or
(b) order that the offender must never be released.
(2) Any minimum period so set begins to run when the sentence of life imprisonment
begins.
(3) A court must make an order under subsection (1)(b) if it is necessary to do so in
order to meet the communitys interest in punishment and deterrence.
(4) In determining whether an offence is one for which an order under subsection (1)(b)
is necessary, the only matters relating to the offence that are to be taken into account
are
(a) the circumstances of the commission of the offence; and
(b) any aggravating factors.
96. Release from life imprisonment
(1) A prisoner serving a sentence of life imprisonment for an offence other than
murder is not to be released before he or she has served 7 years of the sentence.
(2) A prisoner serving a sentence of life imprisonment for murder in respect of which
a minimum period has been set under section 90(1)(a) is not to be released before
he or she has served the minimum period.
(3) A prisoner serving a sentence of life imprisonment for murder in respect of which
an order has been made under section 90(1)(b) is not to be released.
(4) Any order for the release of a prisoner referred to in this section must be made in
accordance with Part 3 of the
Sentence Administration Act 2003.
https://www.slp.wa.gov.au/legislation/statutes.nsf/main_mrtitle_888_homepage.html