Memories of events are notoriously unreliable - especially after some time has passed. Experts and police have developed an app to help the general public record evidence when it's fresh.
Child eyewitnesses make more mistakes than adults when identifying criminals. A new police lineup design could help us assess their reliability and prevent wrongful convictions.
Turns out eyewitness testimony is one of the least reliable forms of evidence.
For decades, the justice system has decided to live with ropey testimonies. Could that be about to change?