A 22-year-old Massachusetts man was arrested Monday after police saw him carrying a bottle filled with feces, according to a police report.

Zachary Patrick Grey, a University of Massachusetts student from Marion, Mass., was arrested at 1:40 p.m. Monday after a foot chase, according to a Denver County Court complaint.

He was the first known person to be charged with possessing bodily waste during the Democratic convention, though the threat of its use has been rumored by police and protesters alike for weeks leading up to the event.

"It's disgusting for anyone to throw that at anyone," said Denver police spokesman Lt. Ron Saunier. "It's just one of the tactics they use to try to incite a reaction."

There have been no verified reports yet of anyone throwing bodily waste or being hit by it.

A police officer was in the process of arresting someone in the 1600 block of Champa Street on Monday afternoon when a police lieutenant spotted Grey holding a bottle of feces, the police report says.

Grey was "getting ready to throw the bottle at officers," the report says.

The lieutenant tried to grab the suspect, who ran away, the report said. While he was running, Grey dropped the bottle, police said.

Grey was charged with interference, disturbing the peace and possession of "irritants" in public.

An irritant is something that "smells bad," said Saunier.

Grey posted a $150 bond at 4 p.m. Tuesday, records say. The phone number he left with the court was not working today.

According to CBS 3 of Springfield, Mass., Grey belongs to a group called Pioneer Valley Food Not Bombs.

The TV station quoted him as saying that he and others were peacefully demonstrating with signs against a two-party system.

He told the station he was surrounded and violently arrested by 20 bike cops who stretched his shirt.

"I did not deserve to be arrested because I'm here to organize community and take part in beautiful new world," he was quoted as saying.

Saunier said police believe they saw people throwing bottles of urine and feces from a garage during Monday night's confrontation at Civic Center. None were arrested.

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Somehow this event reminds me of all those many events where George Bush would only meet with selective invited guests to his public events. That insured that they weren't public, but private events passed off as public.

Bush and Cheney would probably have had a protester like this one arrested as a terrorist and attempted to have him placed in Guantanamo, Cuba prison as an enemy combatant. Held indefinitely without being charged? Hmmm.. Let's see if the Republican Convention in Minneapolis is an open event or is an armed camp..