This video image provided by KVEA/Telemundo shows KCAL cameraman Carl Stein on the ground during an immigrants rights rally Tuesday in Los Angeles. Telemundo's video was shown on a KCAL news broadcast.

Los Angeles ? The Los Angeles Police Department removed dozens of elite officers from immigration protest duty in the hours before a violent clash with immigration marchers and reporters, sources said Thursday, raising new questions about how commanders handled the incident.

The disclosure came as the FBI opened an inquiry Thursday into the clash that left 10 people injured.

Police Chief William J. Bratton escalated his criticism of the officers’ tactics and said the department’s three investigations would focus on the actions not only of line officers but of the top brass who gave the orders.

“There were mistakes made here all the way up and down the line. I want to make that clear,” Bratton said. “Was there lack of supervision? Was there lack of leadership? What were (the line officers) directed to do?”

Bratton and other LAPD officials declined to discuss the deployment plan or other specific details of the investigation. But the disclosure of the shift provides more details of how commanders managed the protests and suggests that police might have been caught off guard by the scope of the protest.

Three platoons dismissed

Three platoons of the highly trained Metro Division, which were originally set to be at MacArthur Park for the end of the immigration march and rally, instead were either sent home or to another assignment, including one in South Los Angeles, according to sources familiar with the matter who spoke on the condition of anonymity because it involves ongoing investigations.

The redeployments occurred shortly before a group of agitators began throwing bottles and other debris at the remaining officers. As crowds grew and tensions rose and officers came under attack, sources said, commanders scrambled to get some of the departed officers back. Some arrived just as the confrontation began. The sources said it was not clear why commanders ordered the platoons to depart.

Bob Baker, president of the L.A. Police Protective League, said his organization had heard from its members about the redeployment and said some officers thought that not enough officers were at the scene.

Previous disturbances

“Why would you take away assets when you know what happened at that location a year before?” Baker said, referring to similar disturbances that occurred at the end of the 2006 May Day rally at the park.

Even with the reduced staffing, several hundred LAPD officers were in the vicinity of the park when commanders decided to clear the area. It is not clear whether extra officers might have changed the outcome.

LAPD officers fired at least 240 rounds of foam, sponge or fiber projectiles as they swept through the park about 6:15 p.m. The move came after police had clashed with a small group of protesters near the intersection of Seventh and Alvarado streets.

Sources have said that neither the top commander nor captain were on the skirmish line as officers confronted the crowd. Bratton also said the LAPD’s order to scatter, which was made from a police chopper only in English, was inadequate.

On Thursday, Bratton offered a more detailed and pointed critique of the police actions, particularly those involving Telemundo anchor Pedro Sevcec, who was broadcasting from under a canopy. He was pushed to the ground while on live television as police shoved through.

“Here you have a tent clearly (for the) news media,” Bratton said. “(The anchor) wears a suit and tie and there is clearly cameras … and the knocking over of cameras in the tent, that behavior is not under any circumstances justified.”

‘That is a concern’

He also said that he was troubled by reports that police used force on women and children who had gone to the park to play.

“The idea that officers would be firing – some of these devices send out five or six projectiles with one shot – that is a concern,” Bratton said.

Andre Birotte, the LAPD’s inspector general, said part of his investigation will focus on whether there were adequate resources and training for the officers involved.

“Were there sufficient planning and resources detailed and dedicated to this event, and was LAPD’s response appropriate to the actions of the crowd?” Birotte said. “If they thought they were undermanned, it could play a role in why they used the force they used. We are going to look at that issue.”

The FBI said in a statement that its “preliminary inquiry” will examine “whether the civil rights of protesters taking part in the May first immigration rally were violated.” The FBI had opened similar probes after other recent high-profile LAPD incidents, including the videotaped beating of Stanley Miller in 2004 and the fatal shooting in 2005 of a 13-year-old.