DNA

He told the court the defendant asked questions "on DNA, how to get away with murder, these types of things".

It wasn't DNA or facial recognition technology that cracked the case.

Police say they obtained a DNA sample that could lead to the conviction of Lisa's killer but had never found a match and no-one was ever charged with the murder.

And for a brand like Jaguar, with the scent of petrol and the sound of six and 12 cylinder engines built into its DNA, it likely to be even harder.

A team of interdisciplinary scientists from the Hakai Institute worked closely with Armstrong to analyze the DNA of these specimens and mapped out the geographic distribution of plants sharing these genetic traits.