This collection of articles looks at mathematics relevant to law and justice.

Why a DNA match doesn't necessarily prove your guilt.

"It's a match!" cries the CSI. At first glance it might seem that if the police have matched a suspect's DNA to evidence from the crime scene, then the case is closed. But some statistical thinking is required to understand exactly what a match is, and importantly, how juries should assess this as part of the evidence in a trial.

• Stats in court
• Letter from a mathematician