Claire's guest is former Garda forensic examiner and the host of the Lines of Enquiry Podcast - John Sweetman. 

If there was a body, a gun, fingerprints, blood... what could you do to find out what happened? 

There are people whose job it is to walk into those scenes and figure it out. 

And John Sweetman spent 25 years doing exactly that... 

Today Claire tries to find out what it’s actually like to walk into a crime scene when everyone else is looking at the chaos... and you’re looking for the tiny detail that might explain it all.