Laws to limit parole applications for serious offenders are being considered by the Victorian government, as the premier apologises for the handling of serial killer Paul Denyer's case.
Premier Daniel Andrews on Tuesday announced his government will look at parole law changes amid calls to ban Denyer from ever re-applying after his request was knocked back earlier this year.
Denyer pleaded guilty to stabbing and strangling Elizabeth Stevens, 18, Debbie Fream, 22, and Natalie Russell, 17, in a seven-week period in the Melbourne bayside suburb of Frankston in 1993.
He was sentenced to life in jail with no parole, which was later reduced on appeal to a non-parole period of 30 years.
In May, the Adult Parole Board told the families of his victims that Denyer's application for parole was refused.
Mr Andrews admitted the board needed to engage much better with victims' families, and apologised to the loved ones of Denyer's victims.
"It's very clear to us . that this process has not been particularly well handled," he told reporters.
The premier said he didn't want families of victims lying awake at night worrying about a killer with very little prospect of parole being released.
Mr Andrews said the law changes would likely target those with life sentences for murders or multiple murders, especially those who don't participate in rehab programs.
Under the changes, those prisoners could potentially only be allowed to apply for parole once.