My dad was recently put into a locked down nursing home about a month ago by my sister. She did this without telling any one of her siblings. She is POA with my younger brother. My dad was diagnosed with early onset dementia about 3 years ago. I talked with the nursing home staff and social worker. They will not release my dad because my sister told them he is a threat to run and suicidal. My dad wants to go home. He is in a place where the residents are fed by the staff and need constant 24-hour care. My dad does not. My younger brother gets him daily and takes him to work with him, construction work then brings him back to the nursing home at 9pm. If my dad comes later than 9pm the cops get called and a warrant is issued. What can we do to get him out of the nursing home permanently?