Accused Claremont killer to stand trial in July

Bradley Robert Edwards will stand trial over the murder of three women in Perth next July - 22 years after the last of them vanished from the streets of Claremont.

In a hearing in Perth's Supreme Court today, Judge Stephen Hall was told the State intends to focus on evidence taken from electronic devices seized from Edwards after his arrest, including "stories of interest" that were either downloaded or authored by him.

Edwards' defence team flagged that it will argue on the admissibility of that evidence, depending on the dates the material was created, downloaded and accessed, which will be of "fundamental importance".

The investigation into the disappearance of Sarah Spiers and the killings of Jane Rimmer and Ciara Glennon is believed to be the longest running and most expensive in Australia.

The court was today told the defence has received a 30-60,000 page report on DNA material alone, and a 45-65,000 page report on hair and fibre evidence.

The state also intends to get statements from three witnesses from Telstra where Edwards, 50, worked as a technician in the 1990s, and will delve into 'every aspect of his working life' including personal leave and vehicles he drove.

Up to 20 taxi drivers who drove or operated vehicles will also be sought out, with some statements already taken.