You have an obligation to protect your grandchild, no matter what the cost. If you suspect the father has abused your grandchild, you must do something. If the abuse continues, what will be next? I know this is hard, but the decision to intervene should be easy. In my case, the abuser of my child was my ex-husband(though we were married at the time) and my child's father. He shook our child when he was only 6 weeks old, and he suffered all the common effects of an SBS victim. I believed him at the time that he shook my child because he had stopped breathing. I so badly wanted to believe him. We were put through family counseling by the State. However, eight months later, my ex-husband abused our son again. This time, he broke his arm (spiral fracture)When I took my son into the ER with the broken arm, they did a full-skeletal x-ray and found a skull fracture (which was consistant with the SBS), the broken arm and another fracure. We were hot-lined into the state for child abuse. I knew when I took my son into the ER that day, that I would possibly lose custody of my child until my ex-husband confessed to the broken arm. I knew there would be severe legal repercussions involved, but I did what was best for my child. Now, my child and I live a healthy, non-abusive life, and he has overcome a great deal. You MUST do what is right, no matter what.