Delve deep into the inner worlds of crime. How does it work, and where does it start?
Billy Billingham joins Greater Manchester Police to take down a suspected drug kingpin.
Investigating how children are being exploited by drugs gangs on social media.
Journalist Tir Dhondy meets the gang members behind the rise in luxury watch theft.
A look at the hidden world of girls in gangs.
Exposing the men running a business of sexual assault targeting women across East Asia.
Stacey meets victims and perpetrators of the most common type of stalking.
James's attempts to recover his stolen identity unearth a shocking web of organised crime.
Documentary looking into a 2012 acid attack on Naomi Oni.
Livvy Haydock investigates UK kidnapping, tracking down kidnappers and meeting victims.
A never-before-seen look at the incel community.
Investigating the impact of overcrowding, drugs and suicides on inmates and staff.
Livvy meets dealers who traffic drugs out of the UK to sell to festival-goers in Paris.
How a local community in Birmingham has been impacted by nitrous oxide.
The hidden world of drugs debt 鈥� where users are forced into crime to pay what they owe.
Following police and smugglers in southern Spain, the main gateway for drugs into Europe.
Investigating South Korea鈥檚 new sex crime, where stolen camera footage is used as DIY porn
