I Was MI6's Top Spy Inside Al-Qaeda
We met with Aimen Dean, who spent a decade making bombs for the jihadi group.
What It's Like to Build a Hospital in a Warzone
An engineer in war-torn South Sudan explains what its like to build medical infrastructure in a place so violent that the UN can't send in its own ground workers.
Meet the Pet Detectives Hunting for the Croydon Cat Killer
Couple Boudicca Rising and Tony Jenkins, along with others from a South Norwood animal rescue group, have commissioned their own forensic tests on the cats that have turned up mutilated in their owners' driveways.
We Went on Patrol with Central London's Undercover Anti-Pickpocketing Unit
The criminals they hunt are skilled international thieves who are almost impossible to catch. They fly in for one weekend, steal hundreds of thousands of dollars from tourists, and then swiftly leave the country.
There's Not Much Actual Cocaine in British Cocaine
London is the coke capital of Europe, but the drug is often heavily cut with dangerous substances before it's sold to users.