Forensic collision investigator Ross Beesley is basically the Sherlock Holmes of car accidents – an expert in spotting unusual signs and figuring out how an accident happened. In this episode he tells us about the skills and techniques he uses to get to the bottom of a case, he explains some of the more unusual signs that can clue you into what’s happened, and he explains how he uses computer simulations in his work.

Patricia Ashman from Coventry University tells us about a proto-type she worked on for the If You Were An Engineer competition called the Wheelchair Swing.

Thanks to Shay and Mia from Sacred Heart Primary School in Bellshill in Scotland for sharing their engineering ideas with us.

And if you have an answer to our problem send your thoughts to info@leadersaward.com or comment on Twitter @Leadersaward. This week, Ollie Folayan wants you to figure out a way of feeding Isaac’s fish twice a day, every day, while he’s away from home.

Your host is Ollie Guillou. Head over to our website www.leadersaward.com/podcasts to access loads of bonus and behind the scenes content.