Investigators scanned and dismantled six of them to expose electrodes for microscopic examination.

CNN: What's wrong with the Dreamliner?

But the University of Chicago palaeontologist argues in his paper that competitive sparring and self-defence were more likely roles for the fangs, based on a microscopic examination of teeth from Pegomastax and its kin.

BBC: Dwarf 'vampire' dinosaur was a plant eater

In some of America's courts this has, to the fury of the forensic scientists involved, led to previously admissible forensic techniques notably handwriting and hair analysis (the examination of features like the colour and microscopic structure of human hair found at the scene of the crime) in particular being deemed unscientific.

ECONOMIST: Whose body of evidence?