We suspect domestic abuse: How do we proceed?

Q. A young employee comes to work often with visible bruises. Last week she had a black eye. She always has a ready excuse. Her husband calls her frequently, sometimes 10 times a day. Several staff have come to me voicing concern that she may be getting abused. Her accuracy level is decreasing and she’s starting to miss work more often. Can I legally approach her and offer resources for battered women?