Dr. Pete Lunn:

I can only say to the Deputy, "Do not shoot the messenger." A large number of studies have been published on this issue. We have done a bit of this work ourselves in the behavioural research unit but I am referring to a large number of international studies that looked at the long-term effects of educational interventions in schools. The news is just not very good about how effective they are. I suspect the Deputy's attitude to littering may have more to do with early punishment and parental influence than it does with the factual knowledge that was pushed towards her in the classroom, but I could be wrong.