Such a ban on Salvia divinorum might infringe on the religious rights protected by the Pennsylvania Constitution.

The eruv's proponents, in turn, argued that a ban on its construction would infringe on their "free exercise" of religion.

"From the outset, we have believed that a total ban would unnecessarily infringe on First Amendment rights," he said.

Grant Teichman, a junior at the university and president of the student association, said the ban would infringe on the rights of those who can legally drink.

The Supreme Court unanimously struck down a Montreal school board ban on the wearing of ceremonial daggers known as kirpans by Sikh students, saying the ban infringed religious freedom.

Tobacco companies and some of their supporters have said bans on advertising infringe free speech.

Other witnesses, including representatives of tobacco companies, said a total ban on smoking would depress restaurant patronage and infringe on the rights of smokers.

Such a ban also infringes the anti-discrimination rules of the EU.

Opponents of the ban stated freedom of speech as a right that the ban infringed upon.

The tobacco companies argue that a ban would infringe their free-speech rights.