Excessive Police Force used on Autistic son....

I am writing this with a heavy heart as what should have been a simple journey to return my son to hospital has turned into a nightmare and he now is in segregation in prison. the police were called to merely tell them he was found and safe, they arrived at daughters house dragged him out put handcuffs on him pepper sprayed him and me would have tasered him if i had not stood in the way I cannot believe what has happened and where he is....the police acted like a bunch of thugs men without honor please help if you can....I do not want this to happen to another ever again.
They have little or as I and my daughter witnessed no understanding of the needs of those with Autism.... it was horrific to say the least they even arrived with dog handlers for someone who was returning to hospital he was then dragged out of a police cell, but in van and taken to court where the duty solicitor had no paperwork from the police, he did not know he was under a section 37 and he had no idea he was Autistic....Please Please help......
They took him out of health care and put him in segregation as their was a situation....as they put it my son is 26 but has a much younger mind and he is one of the most caring young men you could ever wish to meet, helpful and caring to everyone. they are and have tortured my son in their lack of understanding of the situation....