The man accused of the Claremont serial killings has been found injured in prison.

Bradley Robert Edwards, 50, was due to appear in the WA Supreme Court today for the start of a three-day pre-trial hearing into what evidence should be included in the case.

But before the matter began Justice Stephen Hall told the courtroom the matter would be adjourned after being told the accused was ill and had been taken to hospital.

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It is understood Mr Edwards was found this morning with ear injuries in a shower block at Hakea Prison. The incident - and how he received those injuries - is under investigation.

St John have confirmed a 50-year-old man was taken to hospital from Hakea Prison with an injury to his ear.

Camera Icon Ciara Glennon, Jane Rimmer and Sarah Spiers.

Mr Edwards is accused of murdering Sarah Spiers, Jane Rimmer and Ciara Glennon after abducting them from the Claremont entertainment strip in 1996 and 1997. He denies the charges.

The 50-year-old is also accused of depriving a woman of her liberty after breaking into her Huntingdale home in February 1988. He has also pleaded not guilty to the abduction and rape of a 17-year-old girl in Karrakatta Cemetery in February 1995 – less than a year before Ms Spiers disappeared.

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Today’s delay comes after the first day of the hearing on Thursday lasted just 45 minutes before being adjourned to allow Justice Stephen Hall to view the adult horror film Forced Entry over the weekend to determine whether it will become part of the evidence against Bradley Robert Edwards.

The film is among graphic material found on electronic devices seized from Mr Edwards during the Macro Taskforce investigation which led to his arrest in 2016.

Camera Icon Bradley Robert Edwards Credit: Supplied

In court on Thursday, prosecutor Carmel Barbagallo said that there were “no words capable of describing anywhere near” what was in the movie.

But the film will make up part of a bundle of evidence which prosecutors will argue is relevant to the three murders and two sex attacks with which Mr Edwards is charged.

His defence, led by Paul Yovich, will argue it is not relevant, will not help the judge and could prejudice the court against the 50-year-old accused.

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During Thursday’s directions hearing, Mr Yovich argued Justice Hall did not even need to watch the film, and could satisfy himself with a graphic description of its extreme content.

But Ms Barbagallo contended that without watching it, the judge would be asked to try to make a crucial legal ruling “blind”.

“That movie is very graphic, we can describe, as we have done in the statement ... it’s what’s depicted in there, what is done and how it’s done, which we say impacts,” Ms Barbagallo said.

“There’s no words capable of describing anywhere near what is able to be seen in that movie. You honour needs to appreciate what it is that we are relying on.”

Justice Hall agreed, and said he would view it.

To see Bradley Robert Edwards’ arrival in hospital watch 7NEWS Perth tonight at 6pm.