Since that time there has been increasing evidence that children who engage in animal cruelty may be at increased risk of interpersonal offenses in adulthood. In the 1960s, the psychiatric community took notice of childhood animal cruelty as a potential risk factor for violent acts against humans. Legislatures have differed in opinion on the animals to receive protection under the law and have instituted differing penalties for infractions of anti-cruelty measures.
Beginning in the early 1800s, state legislatures in the United States established laws to protect the basic safety and security of animals in their jurisdictions. Animal cruelty has been a concern of the legal and psychiatric communities for many years.