Instagram Imposter Bullies 12-Year-Old's Friends

Brooke Barr was shocked to find someone pretending to be her daughter on the social media site.
3:29 | 06/13/14

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Transcript for Instagram Imposter Bullies 12-Year-Old's Friends
We move on to "The heat index." Now. First up, imagine an imposter pretending to be your child online, cyber bullying your child's schoolmates and the law can't do anything about it. Linzie Janis has the story. Reporter: Brooke Barr was looking at her instagram account one evening, when she saw that her 12-year-old daughter had liked one of her photos. But Brooke had banned her daughter from using the social network months ago. I called her dad and asked if he let her back on instagram. Let her open an account. He said no. Reporter: That's when Brooke realized someone was prevending to be revee. The impersonator used photos from Brooke's account. Then, came the phone calls from reve's friends, claiming they were sent nasty messages. I was in shock. Reporter: One of the posts, full of profanity. The reason I said a 10% because you are such a brat, , , and you think you're popular but you're not. So, stop acting like one and you will never be one 'cause you're such a . Reporter: Her mom spoke with one of the girls who were targeted. She had tears in her eyes. Reporter: Brooke had the fake instagram account taken down. But the company told her if she wanted to find out who was behind it, she needed a southbousubpoena or a search warrant. Police say this young girl is not the victim of a crime. How can that be? Arizona is not one of the states that has a specific law that makes it a crime to impersonate someone online. The ones with the real power here would be the people who got the messages, who could say, profane language was used. This is harassment. This would fall under Arizona's cyber bullying law. And as a result, then, the police could get involved. Reporter: Brooke says she hopes the kids that were bullied will go to the police. I want to find out who this is. It's great to welcome Ericka souter and Lara. A lot of parents aware of this? A lot of parents think of cyber bullying. They're imagining someone sending nasty tweets. They are not thinking that someone is impersonating them. The usual defense is to take your kid off social media. Not allow them to have Twitter accounts. But in this instance, it won't work. How common is this? It's more common than people think. Actually following a case in Minnesota, of a sixth grader, who -- a friend or a friendemy created an account and is sending nasty messages under that person's name. The messages got threatening and the police got involved. More and more states make impersonation a crime, like Texas, New York, Hawaii. More states haven't jumped on that bandwagon yet. What can the parents do if the law is not in their corn center. The first thing you need to do is talk to your kid. Find it how they feel. Also, if they have an idea of who is doing this. The second thing is, go to the school. It's likely that they're not the only child that's being affected. So, talk to administration. And see if something's going on. And third, check and see if the law's in your area. And if something can be done legally. If not, get the parents together and change the laws. That sounds good. We appreciate it very much.

This transcript has been automatically generated and may not be 100% accurate.

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