What does your 'phone goo' say about you?

  • 28/11/2016
What does your 'phone goo' say about you?

You know that layer of residue on your cellphone screen? The stuff you try and wipe off on your jeans?

Turns out it's just another unflattering selfie that can tell scientists - and even police - a lot about you.

Microbiologist Siouxsie Wiles explained the science to Mark Sainsbury.

Watch the video.