Experts testing Muttiah Muralitharan's controversial "doosra" will use state-of-the-art, Academy Award-winning technology to get to the bottom of cricket's most vexing question.

Murali, on the verge of becoming Test cricket's leading wicket-taker, will arrive in Perth this week to have his new delivery assessed by an advanced camera system responsible for the animation in `The Lord of the Rings' trilogy.

Match referee Chris Broad reported the doosra, the off-spinner's wrong-un, as suspect after Murali took 28 wickets in Sri Lanka's 3-0 series loss to Australia.

The report to the International Cricket Council led to the Sri Lankan cricket board referring him on to biomechanics experts to have the delivery tested and reignited a political battle fought out along racial lines.

The doubts raised by Englishman Broad incensed Sri Lankan officials, with former captain Arjuna Ranatunga hinting at a "white conspiracy" to stop Murali (513) passing Courtney Walsh's mark of 519 Test wickets.

But Perth-based Professor Bruce Elliott, an ICC-approved human-movement specialist who tested Murali in 1996, told AAP the advanced technology to be used would deliver a correct and clear-cut analysis of his doosra.

Elliott will use a 12-camera Vicon system which is an updated version of the system used eight years ago, shooting 250 frames per second compared to the six-camera system which captured 50 frames per second.

It allows smaller reflective markers to be attached to the bowler around the elbow, which impede the action less.

"It's the ultimate analysis tool, it's the same sort of tool that they use for all the animations in Lord of the Rings," Elliott said.

Elliott assured the process, which measures whether the bent arm extends more than 10 per cent, was accurate.

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