Mark Richard Lawrence  in bygone days.
Mark Richard Lawrence in bygone days. Supplied

Psych patient killer still a 'serious danger' to community

A KILLER rapist locked up for more than 30 years will stay detained after a court heard his "sexually homicidal" fantasies may be lying dormant.

Mark Richard Lawrence raped and killed fellow psychiatric patient Julie Ann Muirhead in 1983 at Wolston Park, near Wacol.

Despite getting treatment akin to chemical castration, Lawrence was on Friday declared a "serious danger" to the community.

In a judgment delivered on Friday, Brisbane Supreme Court affirmed earlier decisions to detain Lawrence indefinitely.

Justice Sue Brown said one psychiatrist suggested Lawrence's sexually violent fantasies could be dormant, at risk of manifesting on his release.

Lawrence, now 57, was sentenced in 1985 for manslaughter.

Julie Ann Muirhead was killed on Boxing Day 1983.
Julie Ann Muirhead was killed on Boxing Day 1983. Supplied

After killing Ms Muirhead, Lawrence preyed on other inmates, raping one and pulling another one's pants down.

In Queensland, jailed sex offenders like Lawrence can placed on supervision orders, released on parole with supervision, or given continued detention.

The Attorney-General opposed Lawrence's release from custody.

A supreme court hearing in April heard Lawrence was on medication to curb his sex obsessions.

The process lowered testosterone levels. The court heard side effects included sweatiness, hot flushes and lowered bone density.

Another medical expert told the court Lawrence still had some psychopathic traits.

Dr Andrew Aboud said Lawrence had a "history of giving confusing information about whether or not he was harbouring sexual deviant fantasies".

The psychiatrist said Lawrence since adolescence had a history of "deviant fantasies of a sexually homicidal nature".

The new judgment showed Lawrence told one doctor: "Some people can change and you - and after 34 years in jail - you're saying that I can't change?"

Lawrence reportedly agreed his past fantasies had been dangerous, but insisted he'd changed thanks to therapy and work done in prison.

Justice Brown said Lawrence had tried to ensure he could be released, under supervision order, by treatment with antilibidinal medication.

But no appropriate treatment regime was in place to persuade the court Lawrence's risk to others could be reasonably managed.

Justice Brown said there could be "catastrophic consequences" if Lawrence reoffended.

- NewsRegional