That jury deadlocked eight to four in favor of acquittal on the charge of unnecessary use of force against one officer.
Leake pleaded guilty to a reduced charge of unauthorized use of property and entered a court-sponsored diversion program.
The original charge of kidnapping against him has been dropped, but charges of fraudulent marriage, forgery and use of forged documents are still pending.
Mr. Pereira had been arrested eight times since April 1988 on charges of selling drugs, larceny and unauthorized use of vehicles, the police said.
The American officials added that they believe that Kurdish charges of widespread use of chemical weapons in the offensive are true.
Each of the men has a record of multiple arrests, including charges of narcotics possession, robbery and unlawful use of a weapon, the authorities said.
Republicans answered with charges of factionalism and use of political machinery by Democrats.
Maas was also booked on a charge of unlawful use of a weapon.
A hearing on the charge of illegal use of confidential information will take place in late August 2007.
The panel is empowered to investigate charges of excessive or unnecessary use of force, abuse of authority, discourtesy and ethnic slurs.