The legal requirements to restraining an individual to prevent some future violence with a known specific potential victim (eg. restraining order, arrest) are lower than the “beyond a reasonable doubt” standard.

The rights of a child to be abused and the rights of a parent to not have their child be taken away are both very important. It’s my subjective impression that the “child abused” case is much more common than the “child taken away where no abuse occurred” case. I see no reason that our laws should be biased in favor of letting that case occur.