- New Zealand passed a law in 2007 banning physical punishment of children and removing the defense of "reasonable force". This was done to protect children's right to live free from violence. - The law is up for a referendum in July 2009 where voters will be asked if a "smack" should remain a criminal offense. Supporters of keeping the ban say hitting children can harm development and has not proven effective, while opponents want to retain parental right to use physical correction. - Research links physical punishment with increased aggression, mental health issues, abuse risk, and other problems in children. Positive parenting without hitting is advocated as a more effective long-term approach to discipline.