True crime on trial

It's the case that has captured the world's attention. Daily podcasts have poured over Erin Patterson's triple murder trial in painstaking detail.The jury is currently deliberating on the verdict, but millions of armchair investigators have already made up their minds after spending hours listening to the forensic details of the case.It's not the first time a true crime podcast has changed the course of the courts. So what are the ethics and pitfalls of this addictive genre?