Early childhood maltreatment

  Prompt is: Much research indicates that individuals with low MAOA who experience early childhood maltreatment are significantly more likely to engage in violence than those with high MAOA. Some people assert that due to these findings, the criminal justice system should do genetic testing on offenders to identify who has low activity MAOA and take that information into consideration. What are some of the pros/benefits of this approach? What are some of the cons/disadvantages to this approach?