Dave 'Chook' Henwoods work developing criminal profiling in New Zealand, lead to catching some of New Zealand's worst rapists and murderers. He shares his story in his book 'Unmasking Monsters'.

'Sleep Divorce' is a growing trend around the world. Sleep psychologist Dan Ford shares the pros and cons of sleeping separately.

Mediawatch looks back at the media in the middle of political rows about race relations - and why Maori journalists want an apology over a controversial advocacy ad in the Herald. Also: how social media amplified anger over the riots in the UK - and boxing at the Olympics.

From humble beginnings performing magic tricks in Hamilton shopping centres to travelling the world as a trapeze artist with a circus, Bryan Donaldson's life reads something like a movie script. Now settled in Ireland with his wife and two young sons, Bryan runs 'High Performance' the UK's only specialist circus rigging company.

Our quiz master Jack Waley-Cohen is back for another Sunday Morning quiz. Jack is the mind behind the questions on BBC quiz show 'Only Connect' which is known for being both difficult to crack and totally obvious. It's Sunday morning, so wake up your brain and have a go!

On the 12 August 1949, fifty-eight countries, hoping to limit the kinds of horrors seen during the Second World War, signed the four Geneva Conventions. Waikato University's International Law professor Alexander Gillespie joins us...

Golfer Lydia Ko has bagged Olympic gold in Paris and qualified for the LPGA Hall of Fame. RNZ's Barry Guy caught up with her after her win.

Science writer David Robson specialises in the brain, body and human behaviour. In a recent New Scientist article, he explored ways to train yourself to employ better exercise habits - and ended up writing advice on achieving accountability and living with compassion for ourselves.

Mary Argue is back guiding us through the latest weird and wonderful headlines from the world of science.

Our regular US correspondent Karen Kasler is here with the latest political news.