However, the law does not permit the police to arrest some guy absent probable cause even if the accusation is of rape. After a week has passed, the chances of physical evidence proving rape may have disappeared. Even if it might exist (say, fluids and other biologicals) these might show that sex occurred, but not "rape."
For now, a harassment order to keep him away from mom and anyone else named on it may be the best she can get. Building a case for sexual assault may take time, and my not be possible at all!
You need to get your mom into counseling ASAP. Regardless of any legal ramifications, she will need assistance coping with this irrespective of the outcome of any criminal investigation.
I understand that, We went to court on the 4th of June, He was there and knowS. A little while ago, he started talking to my mom when she was doing laundry, I called the cops and the cops said they haven't received the harassment order and had to make a photocopy of it. They also said he hasnt been served yet. He was at the court and was told to stay away and not talk to my mom, how can this not be a violation of the harassment order? I dont understand that.