There is nothing like that. I am referring to the title of this article. Despite what happens in fiction, where often the resolution of a case depends on the discovery of a fibre, typically a single and isolated one, found at the scene and on the victim (it often happens to Sara Sidle from “CSI”; see photo), in reality such a fibre would serve to demonstrate just nothing at all.

It’s clear that certain materials release tiny fibres, which, if desired, can be compared, for example, with the clothes of a suspect or with some other textile object that belongs to the latter.