NEW YORK - Police braced for a day of civil disobedience Tuesday after an ugly turn in relations between convention protesters and the thousands of officers assigned to police them.
A march from the United Nations (news - web sites) to Madison Square Garden ended in violence Monday after a protester attacked a plainclothes detective on a scooter, knocking him unconscious. Hundreds of police in riot gear swarmed the area, pushing protesters away from the Garden and into nearby side streets.
Police prepared for further confrontation Tuesday after protesters promised to demonstrate wherever delegates and party heavyweights were celebrating and sightseeing.
In the months leading up to the convention, activists designated Tuesday an official day of civil disobedience, planning sit-ins, street theater and even vandalism aimed at the offices of corporations with links to the Bush family or the Republican Party.
They planned to start early in the day by harassing Republicans at a breakfast at the Tavern on the Green restaurant in Central Park.
Monday's confrontation capped an otherwise peaceful day of small demonstrations focusing on health care, civil rights, homelessness and other areas where protesters say President Bush (news - web sites) and Republicans have failed the country.
The plainclothes detective who was attacked, William Sample, was in serious condition Tuesday with serious facial trauma, but his injuries were not life threatening, police said. His assailant was being sought. Four other officers suffered minor injuries during the scuffle.
Police Commissioner Raymond Kelly called it "a blatant, vicious attack."
The protest began when a crowd of several thousand outside U.N. headquarters negotiated with police to march to Madison Square Garden despite not having a permit. Police proposed a route to a sanctioned protest area south of the Garden, and demonstration leaders accepted.
"They asked if they could march, and we said yes," police Assistant Deputy Commissioner Tom Doepfner said. "We try to be nice."
A wall of uniformed police on motor scooters blocked off half of Second Avenue as marchers trooped down city streets. Police steered the restless, unwieldy crowd through midtown Manhattan rush-hour traffic as cars backed up 10 blocks in places.
The march ended at the protest area south of the Garden. Witnesses said the confrontation began as police tried to use interlocking metal fences to contain the thousands of protesters.