WASHINGTON -- The Supreme Court on Tuesday, with one dissenting vote, struck down a federal ban on videos that show graphic violence against animals. The ruling was cheered by free-speech advocates, but it raised concerns that more animals will be harmed.

The justices threw out the criminal conviction of Robert Stevens of Pittsville, Va., who was sentenced to three years in prison for videos he made about pit bull fights.

The law was enacted in 1999 to limit Internet sales of so-called crush videos, which appeal to a certain sexual fetish by showing women crushing to death small animals with their bare feet or high-heeled shoes.

The videos virtually disappeared once the measure became law, the government argued. The Bush administration used the law for the first time when it indicted Stevens in 2004.

All 50 states have laws against animal cruelty, but the federal statute targeted the videos because it has been difficult to prosecute people who take part in violence against animals with a camera rolling, but not showing their faces.

Chief Justice John Roberts, writing for the majority, said the law goes too far. He suggested that a measure limited to crush videos might be valid.