I have you loud and clear.

Hello.

Hello.

Welcome.

Science and that is

and that is to say physics, medicine, nature, or space, time, brain, life, the universe.

This week on the naked scientist, we've got science on trial, finding out how it can help and hinder criminal investigations, from how insects can crack a case and he had

disposed of the body but he'd forgotten to dispose the insects that have a

feeding on the body to how TV can twist the facts.

CSR is one of our worst enemies because it gives police officers and other clients very elevated expectations of what we're going to get back from us.

And why we still get it wrong?

Something in the order of a quarter to a third of all identifications made by an eyewitness are actually

identifying somebody who's innocent.

I'm Georgia Mills and this is the Naked Scientists.

The Naked Scientists podcast is powered by UKfast.co.co. UK.

It has been estimated that up to 10,000 people are wrongfully convicted of serious crimes each year in America alone. That's about 0.5% of total convictions, which might not seem like a huge amount, but that's an awful lot of people who are

getting away with it.

So this week I've got science on trial, finding out the ways it can help crack who done it, but

also asking why it's so often not clear. Let's start with a crime scene.

When there's been a crime, the first officers on the scene take steps to avoid contamination.

There's that famous yellow tape, do not cross cross and then they collect things that can be used as evidence

interview any witnesses it's stuff we've seen a hundred times on television

...