He was flown in especially from the UK to give evidence at the Claremont Serial Killings trial. He’s considered the prosecution’s star witness for DNA.

Why?

Because he helped develop the Low Copy Number technique that found the male DNA profile - which the prosecution says is Bradley Edwards’ DNA - on Ciara Glennon’s fingernail samples when no one else could.

Dr Jonathan Whitaker has given evidence at some of the biggest trials around the world, including the now-famous Australian trial which convicted Bradley John Murdoch for the murder of British backpacker Peter Falconio.

But part of his evidence in what could be considered one of WA’s most famous trials, did catch our DNA expert by surprise, in fact, Forensic DNA Expert Brendan Chapman said it could be controversial if left unchallenged.

Our forensic expert breaks down the complicated DNA evidence into an easy-to-understand language on day 58 of WA’s trial of the century.

As we get to the end of the DNA portion of the trial, What Tim Clarke thinks of today’s evidence, why today’s witness is so important, and what’s to come next.

Don’t forget to send in your questions to [email protected]

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