GET ON THE GROUND. GET ON THE GROUND. >> IN JACKSONVILLE, FLORIDA, A MAN LEAVES his therapy appointment and ends up mauled by a police dog. No crime, no threat, just another case of mistaken identity. And another police report that doesn't match the video. Now there's a federal lawsuit, body cam receipts, and an officer with a past so dark it makes you wonder how was he even wearing a badge in the first place? >> Now to an I-Team investigation. News 4 Jax has learned the Jacksonville Sheriff's Office faces a federal lawsuit over a 2022 incident caught on body cam. >> July 21st, 2022. Jamar Brooks steps out of his therapy session on Blanding Boulevard. He's not running, not resisting, but he's ambushed by the Jacksonville Sheriff's Office gang unit. Body cam shows Brooks lying face down, arms out. An officer shoves his head into the pavement. Another lets the canine loose. The dog clamps onto Brooks's arm, biting deep and jerking him side to side while he's already pinned. >> The lawsuit claims the department's gang unit and canine violently took down the wrong man as he was leaving a doctor's appointment. And joining now in studio is News 4 Jax anchor Tarik Minor. >> Yes, so Tarik, you spoke with the lawyer about the federal lawsuit and actually got more details about what happened in that body camera video. >> Uh it's interesting. A former JSO detective now serving a 24-year prison sentence for an unrelated sex crime against a child also took part in that takedown on that video and can be seen in the body camera. Share with News 4 Jax today. >> And here's where it gets worse. One of the officers named in the lawsuit is Hosway Garriga, the same deputy heard identifying Brooks before admitting ain't him. But Garriga's story doesn't end with a bad stop. He's now a convicted criminal himself, found guilty of enticing a minor. That's right. The man trusted with a badge and a gun is now sitting in prison for enticing a child. How many warning signs were ignored before he ended up both brutalizing civilians on the job and committing felonies off it? >> Hey. Now, the man's lawyer in all this, John Phillips, says police not only misidentified his client, Jamari Brooks, he says they also released their canine dog after Brooks laid down to surrender. JSO's denying all wrongdoing IN RESPONSE. >> GET ON THE GROUND! GET ON THE GROUND! >> IT'S BODY WORN CAMERA VIDEO OF THE Jacksonville Sheriff's Office gang unit in 2022 pouncing on Jamari Brooks in front of his chiropractor's office. Authorities deployed their canine dog, Huck, which tore into Brooks' left arm. Brooks was immediately met with officers who had their guns drawn giving him various commands. >> You've got alternating commands that are inconsistent, like stop, come here. You know, you got multiple officers that are all SWAT that are that are giving, you know, don't move, put your hands behind your back. >> Brooks' lawyer, John Phillips, calls the police report filed by the gang unit dysfunctional. The report says the gang unit tried to stop a car, but it sped away. JSO followed the car to a medical complex and watched as a black male wearing a black shirt and a lime green hat walked into an office. The report says the same man came out of the office about 1 to 2 minutes later. >> There was no police chase. There was no crime. There was There was nothing to warrant this response, and yet he's, you know, beaten and has the dog put on him. And the police report wildly describes an incident that that that body camera completely disagrees with. >> The lawsuit states that Brooks immediately lay face down on the pavement with his arms outstretched, and lawyers allege an officer slammed his head onto the pavement and kneeled on his back. K9 Hucks bit Brooks for about a minute. Also seen in this 2022 video is former JSO officer Jose Garriga, who's serving a 24-year prison sentence for an unrelated sex crime. Phillips says while Garriga is on scene, he can be heard on video telling his colleagues they arrested the wrong man. The lawsuit states that Garriga says, "It ain't him." >> Well, actually, I guess I'll be deposing him in prison and confirming why he knew or when he knew this was, you know, Jabari Brooks was not the person they were looking for. >> Phillips says even after Garriga identified Brooks as the wrong suspect, officers still filed this police report that he says has multiple factual errors. >> They had their agenda. And if we don't hold officers more responsible, not just for mistakes, I think we got to hold them, you know, responsible for some mistakes, but malfeasance, then what good are they? And it's going to it's going to impugn the entire credibility of an entire police force and an entire profession that is otherwise honorable. >> This isn't just about one officer or one dog. It's about a system where misidentification can ruin your life in seconds and where reports don't match reality until a camera proves it. Wrong man, wrong story, and an officer later exposed as a criminal himself. This isn't protection. This is power unchecked, and it will keep happening until accountability is more than just a lawsuit. And when the people we're told to trust turn out to be predators like Garriga, the badge becomes less about service and more about protection for themselves.