From [HERE] A Stockton mother is taking a stand, saying police used excessive force when they deployed a police dog to arrest her 18-year-old Black mentally disabled son. A neighbor recorded the arrest that Stockton Police say they handled by the book. The department says the use of force was justified. He spent four days in jail and is charged with resisting arrest.

The police say a group of people on the sidewalk flagged a white officer on patrol down, asking for help, pointing out the suspect. Police say the teen got violent almost immediately.

The 18-year-old’s mom says officers crossed the line, and showed CBS13 his scars and staples. His mom Teresa says, “I’m just going on what the 15-20 witnesses told me the same thing,” she said.

A neighbor captured part of the confrontation on his cellphone. Because of the videos’ quality, it’s hard to tell exactly what’s happening. It shows what appear to be two police cars and a police dog biting someone on the ground. There’s a chorus of shouts throughout the one-minute clip repeating that the man is disabled.

Police say James was acting out and wouldn’t comply with the first officer on scene, then started swinging at him. “They started to fight, at which point our officer had to deploy his K-9 to help take the person into custody,” said spokesman Joe Silva.

Several witnesses told CBS13 that James was already in handcuffs when the police dog was deployed.

Neighbor Patrina Walker says the dog mistakenly bit her first. “The dog got off me and started attacking him while he was already handcuffed with his stomach down with his hands behind his back,” she said.