1/2. Qaanaaq in the far north of Greenland, home to a population of about 600 Inuit, has one prison, with one cell - and the door doesn't lock.
Clive Anderson dons thermal underwear as he finds out why Greenland, which has the most inhumane climate, is reputed to have the most humane legal code in the world. Harsh sentencing is unknown, murderers and rapists may be released within days and there are no Closed prisons. But does it work? Producer Sarah Jane Hall Clive Anderson on the cold arm of the law: page 123