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.
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.