So people can protect themselves from deranged people.
"During a court hearing Oct. 12, Mrs. Kristofak begged a Cobb County judge not to release him from jail. “I fear for my life,” she told Superior Court Judge Adele Grubbs, telling the judge that a court-issued order of protection would not stop her crazed ex-spouse."
And when seconds count. The police are minutes or evens hours away.