Linda Casey dialed 911 and screamed, "Oh, God!" over and over again into the phone after finding her daughter beaten to death in the driveway of their North Carolina home.

Later that day, she heard the 911 recording on the local news and vomited.

"This was not only the most painful thing I have ever been through, it should have been the most private," she said in an e-mail.

Because of situations like Casey's, lawmakers in Alabama, Ohio and Wisconsin are deciding whether to bar the public release of 911 calls.

Missouri, Pennsylvania, Rhode Island and Wyoming already keep such recordings private. But generally, most states consider emergency calls public records available on request, with exceptions sometimes made for privacy reasons or to protect a police investigation.

"Nationally there is a growing concern about the release of audiotapes that don't involve newsworthy people or events — just things that people like to hear because of their sensational nature," said Sonny Brasfield, executive director of the Association of County Commissions of Alabama, which drafted legislation in the state to bar the release of 911 recordings. "There is a concern nationally that these kinds of things are having a chilling effect on people's willingness to call 911."

Open-government advocates disagree and say that prohibiting the release of the recordings takes away a valuable tool that has exposed botched calls.

For example, a Detroit dispatcher in 2006 scolded a 5-year-old boy for "playing on the phone" while his mother lay unconscious. When police arrived, the boy's mother was dead. In a 2008 call in Memphis, Tenn., a 911 operator asked, "What's your emergency?" then fell asleep.

"It's crucial that we're able to hear how our public safety calls are being handled," said David Cuillier, chairman of the Society of Professional Journalists' Freedom of Information Committee.

The public release of audio has also led to accolades for dispatchers who have helped save lives, and helped vindicate operators accused of mishandling a call. line magazine for dispatchers, said new technology makes it easier than ever to splice and copy 911 calls. And cell phone calls are more dramatic and on-the-spot, making the audio irresistible.

Celebrity 911 calls have proved to be enormously popular, as illustrated recently by cases involving Tiger Woods and Charlie Sheen.

"In general, the issue has boiled down to the need for people to feel that they can call 911 at any time and their situation won't be splashed across the media, either creating embarrassment or emotional harm," said Allen, a former dispatcher for 20 years who now works with www.911dispatch.com. "On the other side of that is the very legitimate and obvious public concern that everyone involved in 911 is doing their job correctly. I think it's pretty clear that the public has a right to know what is happening in a communication center."

Nancy Morgan wants every state to ban handing out the 911 recordings. The Florida woman's daughter and son-in-law were murdered by a friend-turned-stalker in 2005, and her granddaughter — 5 at the time — called 911 to report that her parents were dead.

Morgan said the call was played over and over on TV and radio but she managed to avoid hearing it for two years, until she went on a national TV show to speak out about stalking. The producers included the audio without telling her.

"It was devastating to me," she said. "I'd worked through a lot of my grief issues, but to do things like that and trigger painful issues is not appropriate. Now I can't get that out of my head."