I think I have perceived a misunderstanding. While an employer may take legal action, it may only be a civil action. A private person may not prosecute another in a criminal action, a role reserved for a district attorney who represents the state for a crime against the people.
If the evidence is turned over to the district attorney, the office may investigate and determine that a crime has been committed. I doubt that can or will happen without the assistance of the victim since it would be important to ensure that, before charging the defendant and spending the time and money necessary to prosecute the alleged crime, the act occurred without consent of the victim.
As to whether the employer might take legal action, the above applies. Unless there is some exceptional circumstance which we haven't heard, I would imagine that termination of the employee would be a more likely course of action than a legal demand and potential lawsuit for damages.
If the evidence is turned over to the district attorney, the office may investigate and determine that a crime has been committed. I doubt that can or will happen without the assistance of the victim since it would be important to ensure that, before charging the defendant and spending the time and money necessary to prosecute the alleged crime, the act occurred without consent of the victim.
As to whether the employer might take legal action, the above applies. Unless there is some exceptional circumstance which we haven't heard, I would imagine that termination of the employee would be a more likely course of action than a legal demand and potential lawsuit for damages.