As thousands of prisoners are being released early - we go inside HMP Pentonville - one of the UK's most dangerous prisons where violence, overcrowding and self-harm are commonplace.
The BBC gets special access to one of NATO’s most important fighter jets, the type of which are being used by Ukraine to defend against Russian attacks.
A rare insight into the deadly flow of fentanyl from a cartel safe house in Mexico to the streets of America. Will US President Donald Trump's vow to 'wage war' on the drug cartels change anything?
A unique project in Bristol is helping cops catch dangerous offenders and identify young people at risk of sexual exploitation - with the help of street sex workers.
A drug dealer thought he was hiding in plain sight until a series of text messages sealed his fate. Find out how covert police brought down a multi-million pound drugs empire in Wales.
Police in London mount a series of operations to take on the organised crime gangs behind phone theft in the capital, raiding homes, going undercover at stations, and adapting their tactics.
Missing for over 100 Years - using archaeology and specialist research the war detectives track down the living relatives of two fallen soldiers killed in action during World War One.
Ever wondered what happens to our bodies if we donate them to medical science? Go behind the scenes with the university where real human bodies are used to teach students.
From child's toy to deadly weapon – footage of horrific catapult attacks on UK wildlife is being widely shared on social media. We meet the teams on the front line of catapult crime.
Extreme violence has been sweeping across Mexico after the death of a drug cartel boss in Jalisco. In another cartel hotspot, Culiacán in Sinaloa state, warring factions are now battling for control.