A meeting of activists from various organizations will be held tonight in Brooklyn to plan a “day of outrage” that could mirror past efforts to shut down subways, block traffic, and disrupt business.

A Council member of Brooklyn and a former Black Panther, Charles Barron, said the event would be a protest against police.

“We’ve got to come together and do something,” Mr. Barron said. “These police are out of control.”

Mr. Barron would not provide any details or a date for a possible “Day of Outrage” to be held in New York in response to the shooting of Sean Bell and other recent incidents that he says constitute abuses by the police. Mr. Barron participated in the city’s first “Day of Outrage” in December 1987. The New York Times reported at the time that demonstrators blocked traffic on the Brooklyn Bridge and halted service on eight subway lines.

“We just told the city, ‘You have got to pay attention to us. You have got to stop killing us,'” Mr. Barron said. “We’ve got to do something to let the city know we are being killed and brutalized and disrespected and must be attended to very seriously.”

A deputy commissioner at the police department, Paul Browne, wrote in an e-mail that the Police Department’s Internal Affairs Bureau and the independent Civilian Complaint Review Board investigate complaints of police misconduct. He said Mr. Barron’s aides told “purported witnesses” to one case of alleged misconduct to not cooperate with police investigators, “thereby frustrating attempts to determine the truth,” he wrote.

Mr. Barron is planning to hold a press conference at City Hall today to respond to the suspension of his chief of staff, Viola Plummer, by Speaker Christine Quinn. In May, Plummer vowed to end the political career of another council member, even if it takes “an assassination.”

Mr. Barron has said he would fight any efforts to discipline Plummer, who is a 70-year-old grandmother of 10.