Vancouver police brutality on the day of the Amber alert. Excessive use of force on an Davis Lim

This video started just after my son Theo Lim was taken out of my arms.
backstory - I went to Kits in Vancouver to stay close to the Children’s hospital since I didn’t have much supplies and to see if a doctor can give me some tips. Dr Daniel knows of how my son was abused by doctors who did procedures on him that were unnecessary. (read more at - https://danielnagase.substack.com/p/a-child-and-a-ventilator)
It was such a sunny day after some cloudy rainy days. The kids wanted a change of scenery, but we could not get back to my car as there was a cop car right by it and a whole bunch all over the neighbourhood. We went to C41 Coffee cafe and got some food for the girls. The rain started to pour and i saw all the people in the cafe looking at us and how they texted on their phones. i knew the end was in sight. I saw the swarm of police outside and my daughter could not get out the camera on time. they surrounded us. They did not say anything to us. one police officer lunged at my son that was sitting in my lap, grabbed him and knocked my son's head against the wall. I was so shocked. i would have gave my son over to the armed men. I was in the cafe, unarmed, with my 4 children, and a doctor. how am i to comply when my son just got knocked in the head, my girls are screaming and my oldest daughter assaulted and no one wanted to talk?
I was in the state of shock and disbelieve. the police officer shouted at me and wanted to arrest me. He began to twist my arm behind my back, as I wanted answers, he struck me in the head. I know how to do take downs and submissions. this excessive use of force makes me ashamed of my country. I served as a medic in the military and have veteran status. I have bruises all over my head, arms, legs and a painful rib or kidney. I could not sleep well for 2 days. Two of my girls are traumatized and could not sleep well for several days. We need help.... those in power need accountability. David Eby, minister of MCFD, RCMP chief... what will you do? when can we get our son back? when will i get my car, phone, arborist tools? when will the abuse stop? do innocent families still need to suffer under the hands of those who are bullies?

*note, Car and tools returned March 19. Still need to get my son Theo Lim and my cellphone back. my whole family cannot see our son and we don't know how he is currently.