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.
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?
Augmented reality and holographic projections could hold benefits for victims testifying against sexual assault.