The study showed couch patrolling was more common than foot patrols - with social media influencing fears and suspicions.
Polls predicted a ‘blue wave’ that didn’t materialize.
Eyewitness testimony can hold a lot of weight with jurors. But eyewitnesses aren’t always right, and poor investigative practices can make matters worse.
Families of the 298 victims may, at last, see justice after five years.
Despite privacy concerns over police use of DNA uploaded to ancestry websites, many people are just excited that their genetic material could get a killer off the streets.
How easy is it to recognise a suspect from a CCTV image?