SANTA ANA, Calif. (AP) — A former Fullerton police officer who was acquitted of murder and manslaughter in the 2011 death of a homeless man wants immunity from federal prosecution if he testifies in a civil case.

The Orange County Register reported Friday that Manuel Ramos is scheduled to give a deposition next month in the wrongful-death lawsuit brought by Kelly Thomas' father.

Ramos and two other officers were charged in Thomas' death.

He was taken off life support in July 2011 after a violent confrontation with police.

Ramos and Cpl. Jay Cicinelli were acquitted and prosecutors dismissed charges against a third officer.

In court papers, Ramos says the FBI is investigating the case.

If Ramos isn't given immunity, he wants a judge to limit the scope of questioning in the deposition.