“How many serial killers can there actually be?” Scottish Crime fiction author Alex Gray discusses the literary phenomenon of the serial killer. | BBC Scotland

“I had flash points and definite moments where I could feel the gravity of that life pulling on me.” Darren McGarvey features in an honest interview as David Wilson's Crime Files explores the link between extreme poverty and crime. | BBC Scotland

“I prefer the description somebody once gave me...as the gobby shop steward of crime fiction.” Val McDermid joins Professor David Wilson in conversation about her prolific contribution to crime literature. | BBC Scotland