Key Points:

    Are we losing the war against the drug P?

Traditional drug education in schools has little or no effect on young people's tendency to take drugs such as P, researchers have warned.

A Massey University review says bringing in experts to teach about the dangers of drugs and alcohol does not lead to a long-term change in student behaviour - mainly because teenagers have other stronger influences in their lives.

The research was dismissed by one of the country's longest-running providers, the Life Education Trust, as irrelevant academic criticism.

What can be done to win the war against the drug P? Here is the latest selection of Your Views: