Propencity for Crime

This from a Wired article, March 19th:

The director of Scotland Yard's forensics division says that Britain should be collecting DNA samples from any primary school children who show signs of behavior that exhibit a propensity for later crimes, according to an article in the Observer.

The Yard's Gary Pugh says the idea that trivial offenses committed early in life can forecast more serious crimes later in life is supported by studies, and that identifying these individuals when they're children would not only aid crime-solving later, but possibly deter some of these suspects from committing crimes when they're adults.

I must admit, the idea of predicting who criminals may be and preparing for it is an interesting idea. Much like the film Minority Report issues would be raised over convicting someone of a crime they have not committed and would beg the question, would these children grow to be criminals if it were not expected that they would? Undoubtedly some would, in fact, continue a life of crime, but others may simply become criminals because that's what they know everyone is expecting of them.