Dr Allen Ault, the man who was in charge of executions in the US state of Georgia, tells Victoria Derbyshire why he's now campaigning against the death penalty. He left his post as corrections chief in 1995 and has since received counselling to try to come to terms with his sense of guilt.

Living with dementia in your 30s, 40s, 50s and early 60s. A special programme from one of the country's only dedicated day support services for people with young onset dementia. Victoria Derbyshire hears from patients and families and asks why dementia research gets 10 times less medical funding than cancer research.

How good are official statistics? There have been warnings about the reliability of crime statistics and hospital waiting time figures... so what other data should we be worried about?

For the first time, Victoria Derbyshire reports claims that a patient was raped between 50 and 60 times while being treated at an NHS psychiatric hospital in Kent. The woman says the care worker told her he would help secure her discharge if she complied with him. She describes such hospitals as a "playground for predators".

Commander Chris Hadfield, the singing astronaut who spent five months in space at the International Space Station earlier this year, talks to Victoria Derbyshire.

Everything you ever wanted to know about the 'dark web'. The head of Europol's cybercrime centre, Troels Oerting, talks about its dangers and the inventor of the 3D printed gun, Cody Wilson, explains why he thinks it's "a beautiful flower of human activity".

Victoria Derbyshire looks at the work underway to try and prevent people from taking their lives on Britain's rail and tube network. New figures given to 5 live show that over the last six months of this year, 313 people were stopped from committing suicide.

Racing pundit John McCririck, who lost his age discrimination case against Channel 4 over his TV presenting job, tells Victoria Derbyshire he feels he "let so many people down".

This podcast contains content that may offend. Victoria Derbyshire is in Rocinha, one of the largest favelas in Brazil. She reports on prostitution, crime and drug addiction.

This podcast contains content that may offend. Victoria is in Rio to discover what England fans can expect at the 2014 Fifa World Cup.

One of the most influential British rock guitarists and founder member of Dr Feelgood, Wilko Johnson, tells Victoria Derbyshire why he has turned his back on medical advice and is refusing chemotherapy. The 66-year-old was diagnosed with cancer of the pancreas in December 2012.

Victoria Derbyshire is in Harlow meeting some of the 120,00 families in England and Wales the government has labelled as "troubled". She hears about a programme called Family Solutions which effectively teaches mums and dads how to be good parents.

Victoria Derbyshire tells the wonderful story of Musharaf - the pupil with a stammer from the TV series Educating Yorkshire, who has been helped very much by his teacher Mr Burton.

Syrian asylum seekers tell Victoria Derbyshire why they're risking their lives to come to the UK.

Double Olympic and World Champion Mo Farah says that competing in the Commonwealth Games in Glasgow next year would be a "bonus"... but is not on his "to do" list.

Victoria Derbyshire hears from men who have been violent towards their partners and finds out about the 'perpetrator programmes' they've been on to try and help them stop their abusive behaviour. Warning: This programme contains strong language from the start.

The family of Sabrina Moss, who was shot while out celebrating her 24th birthday, have spoken for the first time about their shock and describe the nursery teacher as an "angel". Police believe Sabrina was "in the wrong place at the wrong time" when she was killed in August.

Exclusive figures obtained by the Victoria Derbyshire programme reveal the true extent of underage drinking in the UK. Nearly 300 children aged 11 or under went to A&E in 2012 for an alcohol-related condition.

Victoria Derbyshire hears from pilots who have fallen asleep in the cockpit. One pilot says both he and his co-pilot were asleep just minutes before landing. Another pilot admits risking the lives of 300 passengers when he fell asleep a couple of months ago.

Victoria Derbyshire is in Glasgow, a year before Scotland gets to vote on whether to go it alone as an independent country.

Victoria Derbyshire interviews one of three British men who claim they were tortured and wrongly convicted of drug offences in Dubai while on holiday. Mr Williams says he still has nightmares about the way he was treated in prison, claiming that electric shocks were administered to his testicles.

Victoria Derbyshire reports from outside the Houses of Parliament talking to MPs, listeners and Syrians ahead of a Commons debate about whether the UK should take military action in Syria.

A woman who says she was groomed as a teenager while in the care of Rotherham Council says she wants to see the resignation of police officers and social workers because she believes they allowed her to be abused.

A young black student "full of disdain" for police officers, goes out on the beat. Phil Williams, standing in for Victoria Derbyshire, hears from them both.

In an exclusive interview, a 59-year-old woman who says she was sexually assaulted by Stuart Hall tells Victoria Derbyshire she wants to meet him face-to-face.