An introduction to the Dunedin Longitudinal Study and an exploration of the myths and facts surrounding the long-term effects of childhood, explaining how the early years are important in a number of years and have no lasting influence on others.

Examining the behaviour of young offenders and considering why most desist with unlawful activities as they grow older, but some turn into violent, career criminals.

The nature versus nurture argument is investigated. It is a genetic switch which is thrown by life events; nature loads the gun but nurture pulls the trigger.