MIAMI -

An Opa-locka police sergeant was found guilty on two of three charges Thursday in the trial of the so-called "dirtiest cop" in Florida.

A jury found police Sgt. German Bosque guilty of false imprisonment and tampering. Bosque was also facing a charge of battery, but he was found not guilty on that count.

"It's just never a good day when you have to bring down a police officer because we expect them to protect us, so it's kind of bittersweet," assistant state attorney Sandra Miller-Batiste said.

The state and defense both rested their case Thursday morning, and closing arguments began in the afternoon.

Korey Davis claimed Bosque punched him in the face while he was holding his 14-month-old baby in April 2011 and placed him in a holding area against his will when he went to the police station to file a report against Bosque.

The defense only called two witnesses, former Opa-locka Police Chief Cheryl Cason, whom Davis called the night of the incident to ask for advice, and Davis' ex-girlfriend, the mother of their son, who was present the day of the alleged assault.

Bosque decided not to testify in his own defense.

"I'm against bad policemen," Bosque told Local 10. "I'm against, you know, dirty cops. ... I like the person in the mirror."

Bosque has been arrested, disciplined, suspended, fined and sent home with pay more than any officer in Florida. He has been accused of slamming the head of a handcuffed suspect, beating juveniles, hiding drugs in his police car, stealing from suspects, defying orders and falsifying police reports.

His lawyers said they plan to appeal.