Children from broken homes are nine times more likely to commit crimes than those from stable families- Iain Duncan

Seventy-five percent of delinquents and most adult criminals are from broken homes. Three quarters of prisoners in our jails come from female-headed families. The same pattern is found among drug users. More than two-thirds of the criminal minors handled by the Florida Division of Youth Services are from broken homes. Baltimore, Maryland, found 60 percent of their juvenile criminals from broken homes. More than one in three children of broken families drop out of school.
http://www.mensdefense.org/STM_Book/FatherDeprivation.htm

The study revealed [ http://www.thehindu.com/news/cities/bangalore/broken-homes-poverty-push-juveniles-to-crime/article5058803.ece ]

that a majority — 94 per cent of the boys — were not under parental care. Also, about 89 per cent of them came from poor economic background.

Effects of child abuse and neglect -http://www.helpguide.org/articles/abuse/child-abuse-and-neglect.htm

Abused and neglected children are more likely than other children to be self destructive or aggressive, to abuse drugs and/or alcohol, or become young offenders or "street kids". In some situations abuse and neglect may result in permanent physical damage.In the longer term, adults who have been abused as children are also more likely to abuse their own children and often experience difficulties in forming satisfactory relationships with other adults.