There are a large number of theoretical explanations of the development of behaviour disorders, which come under the broad headings of biophysical, psychodynamic, behavioural, cognitive-behavioural, sociological, and ecological. Each of these points of view covers a variety of theories that are diff...

” Young killer fell through cracks” “ Mauled girl savaged by mans best friend” Each of these headlines from recent New Zealand newspapers is illustrative of an “ episode, condition, person or group of persons” that have been defined as a “ threat to societal values and interests�...